11
January1978 Journ.Jap.Bot.Vo l. 53No.1 TakasiYAMAZAKI*: Newornoteworthyplantsofthe ScrophulariaceaefromIndo-China (1) 山崎敬*. インドシナ産ゴマノハグサ科植物の新知見 (1) 1had opportunity to have the loan of thespecimens of Scrophulariaceaeof Indo.China;themanyspecimensof Vietnam and Cambodia from Museum National d'Histoire Naturelle Paris (P) the latest specimensofThailand fromThe Botanical Museum University of Copenhagen (C), Botanisk Institut Aarhus tJ niversitet(AAU) andDepartment of Botany Faculty ofScience KyotoUniversity(KYO) andthetypespecimensofKerrinThailandfrom RoyalBotanicGardens Kew (K) and Departmentof Botany Universityof Aberden (ABD). Asaresultontherevisionofthesespecimens it becomes necessarytoreportsomenewtaxaandnewnames. 1wishtoexpressmy sincereappreciationtotheauthoritiesoftheseherbaria. 1. LinderniacephalanthaYamazaki sp.nov.Fig. 1 1-4. Herbaannua.Cauliserectussimplexvelleviterramosus 6-16cmaltus tetragonus striatus glaber.Foliasessilia semiamplexicaulia lineari lanceo lata 15-50 m mlonga 1. 5-5 m mIata apexacuta velobtusa minutearistato serrata supra ad nervos sparse pilosa subtusglabra uninervia. Infiorescentia capitata multifiora. Bracteae lanceolatae 3-10 m mlongae 1. 5-4 m mlatae pinnatifidae. Calyxsubsessilis 3-4 m mlongus glabrescens 5.fidus lobis3 posticis setaceo linearibus integris margine sparse pilosis lobis2anticis oblanceolatis pinnatifidis. Corolla 7 m m longa bilabiata tubo graciliter cylindrico ca.4 m mlongo externesparseglanduloso labioposticooblongo ca.1 m mlongo 0.8 m mlato labioanticodilatato ca. 3.5 mmlato 3.10bato lobo medio majore. Stamina 2 posteriora perfecta. Stamirtodea 2 anteriora breviterfiliformia ca. 0.3 mm longa. Capsula lineari.oblonga acuta calycem superans 5-6 m m longa 1 rnmlata. Seminae 11i psoidea alveolata 0.45 m m longa 0.3 m mlata nigrescentia. Thailand. Northern: Loei NaNoi foothill of Phu Kradung(Ch.Chara. enphol K.Larsenet E.Warnche Nov. 11 1970 110 4930 typusinAAU). Botanical GardensKoishikawa FacultyofScience UniversityofTokyo Hakusan 3-7-1 Bunkyo ku Tokyo. 東京大学理学部付属植物園. -1

(1) 山崎敬*. (1)January 1978 Journ. Jap. Bot. Vol. 53 No. 1 Takasi YAMAZAKI*: New or noteworthy plants of the Scrophulariaceae from Indo-China (1) 山崎敬*. インドシナ産ゴマノハグサ科植物の新知見(1)

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Page 1: (1) 山崎敬*. (1)January 1978 Journ. Jap. Bot. Vol. 53 No. 1 Takasi YAMAZAKI*: New or noteworthy plants of the Scrophulariaceae from Indo-China (1) 山崎敬*. インドシナ産ゴマノハグサ科植物の新知見(1)

January 1978 Journ. Jap. Bot. Vol. 53 No. 1

Takasi YAMAZAKI*: New or noteworthy plants of the

Scrophulariaceae from Indo-China (1)

山崎敬*. インドシナ産ゴマノハグサ科植物の新知見 (1)

1 had opportunity to have the loan of the specimens of Scrophulariaceae of

Indo.China; the many specimens of Vietnam and Cambodia from Museum

National d'Histoire Naturelle, Paris (P), the latest specimens of Thailand

from The Botanical Museum, University of Copenhagen (C), Botanisk Institut,

Aarhus tJniversitet (AAU) and Department of Botany, Faculty of Science,

Kyoto University (KYO), and the type specimens of Kerr in Thailand from

Royal Botanic Gardens, Kew (K) and Department of Botany, University of

Aberden (ABD). As a result on the revision of these specimens, it becomes

necessary to report some new taxa and new names. 1 wish to express my

sincere appreciation to the authorities of these herbaria.

1. Lindernia cephalantha Yamazaki, sp. nov. Fig. 1, 1-4.

Herba annua. Caulis erectus simplex vel leviter ramosus, 6-16 cm altus,

tetragonus, striatus, glaber. Folia sessilia, semiamplexicaulia, lineari・lanceo・

lata, 15-50 mm longa, 1.5-5 mm Iata, apex acuta vel obtusa, minute aristato・

serrata, supra ad nervos sparse pilosa, subtus glabra, uninervia. Infiorescentia

capitata, multifiora. Bracteae lanceolatae, 3-10 mm longae, 1.5-4 mm latae,

pinnatifidae. Calyx subsessilis, 3-4 mm longus, glabrescens, 5.fidus, lobis 3

posticis setaceo・linearibus,integris, margine sparse pilosis, lobis 2 anticis

oblanceolatis, pinnatifidis. Corolla 7 mm longa, bilabiata, tubo graciliter

cylindrico, ca. 4 mm longo, externe sparse glanduloso, labio postico oblongo,

ca. 1 mm longo, 0.8 mm lato, labio antico dilatato, ca. 3.5 mm lato, 3.10bato,

lobo medio majore. Stamina 2, posteriora, perfecta. Stamirtodea 2, anteriora,

breviter filiformia, ca. 0.3 mm longa. Capsula lineari.oblonga, acuta, calycem

superans, 5-6 mm longa, 1 rnm lata. Semina e11ipsoidea, alveolata, 0.45 mm

longa, 0.3 mm lata, nigrescentia.

Thailand. Northern: Loei, Na Noi, foothill of Phu Kradung (Ch. Chara.

enphol, K. Larsen et E. Warnche, Nov. 11, 1970, 110・4930,typus in AAU).

キ BotanicalGardens Koishikawa, Faculty of Science, University of Tokyo, Hakusan 3-7-1,

Bunkyo・ku,Tokyo. 東京大学理学部付属植物園.

- 1ー

Page 2: (1) 山崎敬*. (1)January 1978 Journ. Jap. Bot. Vol. 53 No. 1 Takasi YAMAZAKI*: New or noteworthy plants of the Scrophulariaceae from Indo-China (1) 山崎敬*. インドシナ産ゴマノハグサ科植物の新知見(1)

2 植物研究雑誌第 53巻第 1号 昭和 53年 1月

This species has connection with L. aculeata (Bonati) YamazakF) by the

characters of the calyx lobed near the middle, the slender corolla-tube and

the short staminodes, but the former is remarkably distinguished by the

characters of the capitate inflorescence, the pinnatifid bract and the anterior

2 lobes of the calyx being pinnatifid.

2. Lindernia maxwellii Yamazaki, sp. nov. Fig. 1, 5-8. Fig. 2.

Herba annua. Caulis erectus, multi-ramosus, 35 cm altus, tetragonus,

glaber, sed ad nodos brevissime pubescens. Folia sessilia, lineari-oblanceo・lata, apice acuminata, margine 1-3 minutissime denticulata vel integra, 1.5-

3.5 mm longa, 1-3 mm lata, utrinque glabra, uninervia. Flores ad axillas

foliorum superiorum solitarii vel in racemum terminalem dispositi; bracteae

foliiformes lineares 3-8 mm longae; pediceli in anthesi erecti 3-5 mm longi,

in fructu arcuato・ascendenti5-9 mm longi, sub lente sparse patente glanduloso・

pilosi. Calyx cylindricus, in anthesi 4 mm in fructu 5-6 mm longus, sub lente sparsissime glanduloso・pilosus,5-fissus; tubus 1.5-2 mm longus, 5-costatus;

lobi filiformes acuminati, 2.5-4 mm longi, margine scabrido-hirsuti. Corolla

6 mm longa, labio postico deltiodo・ovato,breviter bilobo, ca. 2 mm longo

1.5 mm lato, externe puberulo, labio antico tri・lobato. Stamina 4, perfecta,

宣lamentisposterioribus ca. 1.2 mm longis, antherarum loculis acutis, filamentis

anterioribus ca. 3 mm longis, appendicibus carnoso-cIavatis ca. 0.5 mm longis.

Capsula anguste oblonga, acuta, calyce subaequilonga, ca. 4 mm longa 1 mm

lata. Semina immatura ellipsoidea, alveolata, ca. 0.35 mm longa 0.25 mm lata.

Thailand. Eastern: Sisaket, Kanthralak, Roong, Chong Bat Lak, open

sandy places in a destroyed dry evergreen forests at altitudes of 200 m.

Corolla palate white, lobes blue, mid-lobe of lip with 2 small yellow blots at

the base. (J. F. Maxwell, April 12, 1976, no. 76-214, typus in AAU).

This species is near to L. laotica (Bonati) Bonati, but di旺ersin the leaves

being linear-oblanceolate and acuminate at the apices, the laxly racomose

inflorescences and the glandular-pilose pedicels.

3. .Lindernia pierreanoides Yamazaki, sp. nov. Fig. 1, 9-11. Fig. 3.

Herba annua. Caulis laxe ramosus, erectus vel ascendens, 8-22 cm longus,

1) Lindernia aculeata (Bonati) Yamazaki, comb. nov. --Ilysanthes aculeata Bonati in Bull. Soc. Bot. France ser. 4, 8: 541. 1908; in Lecomte, Fl. Gるn.Indo-Chine 4: 429. 1927.

Hab. Laos: Bassac. (Thorel s. n., 1866-68. Type in P).

-2ー

Page 3: (1) 山崎敬*. (1)January 1978 Journ. Jap. Bot. Vol. 53 No. 1 Takasi YAMAZAKI*: New or noteworthy plants of the Scrophulariaceae from Indo-China (1) 山崎敬*. インドシナ産ゴマノハグサ科植物の新知見(1)

January 1978 Journ. Jap, Bot. Vo1. 53 No. 1 3

開e

Fig. 1. 1-4, Lindernia ceρhalantha: 1. Plant, xO.8. 2.' 0:orolla opened, x5. 3. Calyx with

bract, x5. 4. Capsule with persistent calyx, x4.5. 5-8, Lindernia maxwellii: 5. Por-

tion of stern, xO.6. 6. Corolla opehed, x4.5. 7. Ca:fyx, x5. 8. Capsule with persisteht calyx, x4, 9-11, Linderniaρierreanoides: 9叶 Cal?i?,tj.lewith persistent .calyx, x4.5. 10. Corolla opened, x4.5. 11. Calyx opened showing pistil, x4.5.

-3-

Page 4: (1) 山崎敬*. (1)January 1978 Journ. Jap. Bot. Vol. 53 No. 1 Takasi YAMAZAKI*: New or noteworthy plants of the Scrophulariaceae from Indo-China (1) 山崎敬*. インドシナ産ゴマノハグサ科植物の新知見(1)

4 植物研究雑誌第 53巻第 1号 昭和 53年 1月

Fig. 2. Lindernia maxwellii. Type, Maxwell, no. 76-214 in AAU, xO.4.

tetragonus, sparse breviter pubescens. Folia breviter petiolata, petiolis 0.5-

3 mm longis, superioribus sursum brevioribus, laminis membranaceis, oblongo・

lanceolatis, apice obtusis, basi. cuneatis in petiolum attenuatis, 7-30 mm

longis 2-7 mm latis, margine obsolete pauci-dentatis scabridis, utrinque spar-

-4ー

Page 5: (1) 山崎敬*. (1)January 1978 Journ. Jap. Bot. Vol. 53 No. 1 Takasi YAMAZAKI*: New or noteworthy plants of the Scrophulariaceae from Indo-China (1) 山崎敬*. インドシナ産ゴマノハグサ科植物の新知見(1)

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Page 6: (1) 山崎敬*. (1)January 1978 Journ. Jap. Bot. Vol. 53 No. 1 Takasi YAMAZAKI*: New or noteworthy plants of the Scrophulariaceae from Indo-China (1) 山崎敬*. インドシナ産ゴマノハグサ科植物の新知見(1)

6 植物研究雑誌第 53巻第 1号 昭和 53年 1月

sissime pubescentibus vel glabris, pinnati.nervis. Flores ad axillas foliorum

superiorum solitarii, pedicelis gracilibus, 1.5-3 cm longis, apprese albo中ubes.

centibus. Calyx campanulatus, 5.costatus, sparse appresse albo引 lbescens,

3-4 mm longus, usque ad tertium bifissus, lobo postico 3.1obato, lobo antico

leviter bilobato. Corolla 9-11 mm longa, labio postico late orbiculato leviter

bilobato, 2.5-3 mm longo 3.5-4 mm lato, margine repando, labio antico tri-

lobato, margine repando, lobo medio majore rotundato ca. 2 mm longo et lato,

lobis lateralibus basi lanatis. Stamina 4, perfecta, filamentis posterioribus

ca. 1.2 mm longis, connectivo antherarum in apicem brevem acutum producto,

:fi)amentis anterioribus ca. 2.5 mm longis, appendicibus filiformis, ca. 1 mm

longis, punctatis. Capsula elliptica, 4 mm longa, 2 mm lata, calyce inclusa.

Semina ellipsoidea, alveolata, ca. 0.35 mm longa, 0.25 mm lata.

Thailand. Northern: Tak, between Tak and Ban Dan Lan Hoi, alt.

150 m (Murata, Fukuoka et Phengklai, July 24, 1973, no. T-16965, typus in

KYO and TI). Southeastern: Trat Khlong Yai (K. Larsen et al., Sept. 2,

1972, no. 32328, AAU). Southwestern: Kanchanaburi, alt. 100 m (Murata

et al., Oct. 10, 1971, no. 16202, KYO and TI), Kanchanaburi, Lat Ya, alt. 50 m

(Smitnand, no 11352, Nov. 17, 1970, AAU) , Salag Prah, Sadong (Beuschekom

et al., Nov. 28, 1971, no. 4024, KYO) , Rachaburi, Huai Yang (K. Larsen et

al., Aug. 12,1966, no. 1510, AAU) , Prachuap Kiri Khan, Kow Dow, Hua Hin,

alt. 200 m (Maxwell, July 31, 1976, no. 76-453, AAU). Eastern: South of

Korat, Pak Thong Chai (Charaenphol et al., Nov. 1970, no. 4515, AAU).

Ecology. Sunny fields, savannah.like dry deciduous forests on limestone,

in scrubs on sandy soil, open rocky glade on the top of the mountain, at

altitudes of 50 m to 200 m.

This species closely resembles L. Pierreana (Bonati) Bonati in Annam,

but di旺ersin the characters of the leaves being oblong.oblanceolate, cuneate

at the base and attenuate into the petiole, the longer pedicels, and the calyx

being campanulate, not tubular.cylindric.

4. Lindernia stolonifera Yamazaki, sp. nov. Fig. 4. Fig. 5, 1-2.

Herba humilis. Caulis repens 2-6 cm longus, tetragonus, brevissime albo-

villosus, sparse ramosus, ramis stoloniformibus elongatis ad nodos radicanti-

bus, usque ad 13 cm longis, brevissime albo.villosis. Folia caulina 2-3 jugata,

breviter petiolata, oblonga vel ovobato・oblonga,apice rotundata vel obtusa,

basi in petiolum attenuata, 2-5.5 cm longa, 1-2.5 cm lata, utrinque dense

- 6ー

Page 7: (1) 山崎敬*. (1)January 1978 Journ. Jap. Bot. Vol. 53 No. 1 Takasi YAMAZAKI*: New or noteworthy plants of the Scrophulariaceae from Indo-China (1) 山崎敬*. インドシナ産ゴマノハグサ科植物の新知見(1)

January 1978 Journ. Jap. Bot. Vol. 53 No. 1 7

Fig. 4. Lindernia stolonifera. Type, Poilane, no. 8443 in P, xO.35.

--7ー

Page 8: (1) 山崎敬*. (1)January 1978 Journ. Jap. Bot. Vol. 53 No. 1 Takasi YAMAZAKI*: New or noteworthy plants of the Scrophulariaceae from Indo-China (1) 山崎敬*. インドシナ産ゴマノハグサ科植物の新知見(1)

8 植物研究雑誌第 53巻第 1号 昭和 53年 1月

brevissime villosa, margine crenata; folia raminalia elliptica vel ovato・elliptica,

subsessilia, apice obtusa, basi cuneata, crenata, 1-3 cm longa, 0.7-2 cm lata,

utrinque brevissime villosa. Inflorescentia in ramum terminalem disposita,

laxe 6-JO-florifera, racemosa, 6-10 cm longa; peduncli inferiori albo-pilosi,

superiori glanduloso-pilo~i; pedicel1i gracili, in anthesi 10-15 mm, in fructu

18-25 mm longi, glanduloso-pilosi; bracteae setaceae 1-2 mm longae. Calyx

profunde 5-partitus, in anthesi 3 mm, in fructu 4-5 mm longus, sparse albo-

hirsutus, lobis lineari-lanceolatis acuminatis, uno postica ceteris longiore.

Corolla 7-8 mm longa, violacea, labio postico triangulari・ovato,apice bilobo,

2 mm longo et lato, labio antico 3-1obato, lobo medio rotundato, ca. 1 mm

longo 1.5 mm lato; tubum intus in quadrifariam glanduloso引 mctatum,jugis

jii

,~{ 6 ,

Fig. 5. 1-2, Lindernia stolonifera: 1. Corolla opened., x4.5. 2. Capsule with persistent calyx, x4.5. 3-4, Lindernia udawnensis: 3, Corolla opened, x4.2. 4. Capsule enclos-ed with persistent calyx. x5. 5-6, Lindernia umbellata: 5. Corolla opened, x4.5.

-8-

Page 9: (1) 山崎敬*. (1)January 1978 Journ. Jap. Bot. Vol. 53 No. 1 Takasi YAMAZAKI*: New or noteworthy plants of the Scrophulariaceae from Indo-China (1) 山崎敬*. インドシナ産ゴマノハグサ科植物の新知見(1)

January 1978 Journ. Jap. Bot. Vol. 53 No. 1 9

antico・1ateralibus1anatis. Stamina 4, fertilia; .日1amentapostica 1 mm 1onga;

fi1amenta antica 2.5 mm longa, basi geniculato・appendiculata;appendices sub.

globosi papi110si ca. 0.6 mm lati. Ovarium ovatum glabrum. Stylus 6 mm

longus glaber. Capsula ellipsoidea, 3-4 mm longa, 2-3 mm lata. Semina brev.

iter cylindrica, alveolata, ca. 0.45 mm longa 0.3 mm 1ata.

Vietnam. Annam: 25 km rute de Nhatrang a Ninh Hoa, alt. 100 m

(Poi1ane, Oct. 27, 1923, no. 8443, typus in P), Da Nang (Gaudichaud, Jan.

1837, no. 118, P).

This species is c10sely re1ated to L. latifolia (B1.) Koord., but di百ersin

having the creeping sto1ons, the slender pedice1s, and the smaller flowers

and capsu1es.

5. Lindernia udawnensis Yamazaki, sp. nov. Fig. 3. Fig. 5, 3-4.

Torenia godefroyi auct. non Bonati, Kerr in F1. Siam. Enum. 3: 71. 1954.

Herba perennis. Caulis prostratus usque ad 25 cm 1ongus, tetragonus,

striatus, sparse pi1osus, pi1is a1bis curvatis. Folia chartacea, pinnati-nervia,

breviter petio1ata, petiolis 0.5-4 mm longis sparse hirsutis, laminis ob1ongo・

ovatis, ovatis vel orbicu1ato-ovatis, apice obtusis, basi in petio1um attenuatis,

3-13 mm longis 2-7 mm 1atis, margine obsolete crenatis, supra glabrescentibus,

subtus ad costam sparse pubescentibus. Flores ad axillas foliorum superi.

orum solitarii vel in racemum terminalem dispositi; bracteae foliiformes, minores; pedicelli erecti, in anthesi 5-10 mm longi, in fructu 8-35 mm longi,

pubescenti. Calyx tuburosus, in anthesi 3 mm longus in fructu 5 mm longus,

anguste 5-alatus, 5-dentatus, alis sparse longe hirsutis. Corolla purpurea,

11-12 mm longa, labio postico late ovato, apex bilobato, sub lente margine

papi11oso, labio antico 3-1obato, lobis orbiculatis. Stamina 4, perfecta, fila-

mentis posticis ca. 1 mm longis, connectivo antherarum in apicem brevem

acutum producto, filamentis anticis ca. 3.5 mm longis, appendicibus c1avatis

ca. 0.5 mm longis. Capsula ellipsoidea vel ovoidea, 3-4 mm longa 1.5-2 mm

1ata, calyce brevior. Semina ellipsoidea, alveolata, ca. 0.35 mm longa 0.25 mm

lata.

Thai1and. Northeastern: Loei, Phu Kradung (Shimidzu, Hutoh et Chang-

10m, Sept. 5, 1967, no. 8998, typus in KYO; Sorensen, Larsen et Hansen,

March 20, 1958, no. 2333, C). Loei, Phu Luang (Tagawa et a1., Dec. 5, 1965,

no. 1590, KYO, TI; Hennipman, Jan. 9, 1966, no. 3567, KYO, C). Kao

Kradung (Kerr, March 12, 1924, no. 8499, K).

-9-

Page 10: (1) 山崎敬*. (1)January 1978 Journ. Jap. Bot. Vol. 53 No. 1 Takasi YAMAZAKI*: New or noteworthy plants of the Scrophulariaceae from Indo-China (1) 山崎敬*. インドシナ産ゴマノハグサ科植物の新知見(1)

10 植物研究雑誌第 53巻第 1号 昭和 53年 1月

Fig. 6. Lindernia U1仰bellafa. Type, Harmand, no. 2891 in P, mag. nat.

-10-

Ecology. Sandstone plateau

with grassy swards and scatter-

ed scrubs at altitudes of 1200 m

to 1400 m.

This species c10sely relates

to L. crustacea (L.) F. Muell, but

di旺ers in having the thicker

leaves with obsolete crenate

teeth, the narrowly winged calyx

wi th long hirsute hairs on the

wings and the larger corolla.

6. Lindernia umbellata

Yamazaki, sp. nov. Fig. 5, 5-6.

Fig. 6.

Herba. Caulis erectus sim-

plex, 28 cm altus, tetragonus,

glaber. Folia sessi1ia, linearia,

apice obtusa, basi attenuata, semiamplexicaulia,8一24mmlonga,

1-2.5 mm lata, margine sparse

obsolete dentata, supra glabra,

subtus ad costam sparsissime

hirsuta, uninervia. Flores 2-10

ad axi11as foliorum superiorum

vertivi11ati; bracteae setaceae, 2-

4 mm longae ; pedicelli in anthesi

2-3 mm longi, in fructu 3-5 rnm

longi, initio erecti mox penduli,

sparse hirsuti. Calyx cylindri-

cus, 5-costatus, in anthesi 5 mm

longus, in fructu 7 mm longus,

sparse hirsutus, breviter 5・lob-

atus, lobis deltoideo・lanceolatis,

acuminatis. Corolla usque 8 mm

longa, labio posteriore late ovato,

Page 11: (1) 山崎敬*. (1)January 1978 Journ. Jap. Bot. Vol. 53 No. 1 Takasi YAMAZAKI*: New or noteworthy plants of the Scrophulariaceae from Indo-China (1) 山崎敬*. インドシナ産ゴマノハグサ科植物の新知見(1)

January 1978 Journ. Jap. Bot; Vo1. 53 No. 1 11

vix emarginato, margine repando, labio inferiore 3-1obato・ Stamina4, per-

fecta, filamentis posterioribus ca. 1 mm longis, antherarum loculis acutis,

filamentis anterioribus ca. 2 mm longis, basi appendiculatis, appendicibus

lineari・clavatisca. 0.5 mm longis. Capsula anguste oblonga, calyce inclusa,

ca. 4 mm longa, 1.3 mm lata. Semina ellipsoidea, reticulata, scrobiculata, ca.

0.3 mm longa, 0.25 mm lata.

L. spathacea a白nis,sed a qua fioribus verticillatis, pedicellis brevioribus,

capsulis pendulis differt.

Cambodia. Sine locus (Harmand, no. 2891, typus in P).

* * * *

インドシナのゴマノハグサ科植物は, フランスの Bonati,イギリスの Kerrによっ

て整理されている。今回これらを再検討した結果,色々な新しい事実がわかってきた。

特にアゼトウガラシ属,ハナウリクサ属の仲間はインドシナが分化の中心であり,いく

つかの新属や新種としなければならないものがある。ここには新種を報告する。

Linderniα cephalanthα は雄しべ 2本で, 他の 2本は仮雄蕊となり, 果実は円筒

形でスズメノトウガラシ亜属に入るが, 花筒が細長く, 仮雄蕊がごく短いので, ラオ

スの L. aculeαta (Bonati) Yamazaki と共に一つの節を作るものと思われる。 L.

pierreanoidesはがくが居形となる点に特徴があり,アンナンの L.Pierreana Bonati

と共に一つの節を作るものと思われる。 L.stoloniferaはインドネシア,ボルネオから

インドシナの山地に分布する L. lαtifoliaに近いが花や果実が小さく,ほふく茎をも

っ点が異る。アンナンの低地に分布する。 P.H. Hδ 氏がアシナンから図示した L.

latifoliαはこれでなし、かと思う。 L.udawnensisは東南アジアの熱帯から温帯に広く

分布するウリグサと華南, ベトナムに分布する L. oblongα(Benth.) Merri1l et

Chunに近縁の種類でタイの東北部にのみ分布する。

ロD.Werner ed.: The Biology of Diatoms Botanical Monographs Vo1. 13,

498 pp., Blackwell Scientific Publications, Oxfod (1977) [,17. 珪藻植物につい

ては, 従来,野外の採集材料を検鏡して, 分類や分布を論す守る研究が多かったが,室

内培養法が確立された 1950年頃より,広く生物学の各分野からの研究が多くなり,原

著論文の掲載される雑誌も多方面に亘るようになった。 この本は珪藻についての最近

の研究結果を, 12章に分けて総説したものである。章の内容は,藻の分類,生長と培

養,徴細構造,珪酸代謝,光合成,運動,生殖,生態などであり, 珪藻の最近の知見

の 全貌を容易に知ることができ便利である。(千原光雄)

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