Two New Taxa of Campylotropis (Leguminosae) from China

5 Pages·1997·0.41 MB·English

by  Yu Iokawa

植物研究雑誌
J. Jpn. Bot.
72: 139-143 (1997)
Two New Taxa of Campylotropis (Leguminosae) from China
YuI OKAWA and Hiroyoshi OHASHI
Biological Institute，Gr aduate School of Science，T ohoku University，Se ndai，98 0-77 JAPAN
(Received on December 4，1 996)
A new species of Campylotropis，C. alba，a nd an ew variety of C. pinetorum，va r.
αlbopubescens，ar e described from China. The former is distinguished from other species
of the genus by inflorescence features and floral morphology，an d the latter is different
from the typical variety in hairiness.
The genus Campylotropis is distributed Campylotropis alba Schindler ex Iokawa
widely in temperate Asia，a nd 77 species are & H. Ohashi，sp . nov. (Figs. 1，2)
recorded. In order to prepare am onograph of Affinis Campylotropidi mαcrostylae，s ed
the genus，w e have revised all species so far pedicellis brevioribus ca. 1.5 mml ongis et
described under the genus or Lespedezα. Dur- lobis calycis 6-7 mmlo ngis quam tubo 3-plo
ing this work，w e found two unknown plants longioribus differt.
among the specimens borrowed from the Her- Frutex? Rami homotini angulati，d ense
barium of Royal Botanic Garden，E dinburgh patenter albo-tomentosi. Folia 3-foliolata，
(E). stipulata et brevi-petiolata. Stipulae anguste
One of them which wec onsider to be an ew triangulares，3- 4 mmlo ngae et ca. 1m mla tae，
species was determined by Schindler as striatae，e xtus pilosae，i ntus glabrae. Petioli
“Campylotropis albαSchindler，n. sp. 18. 5. dense albo-tomentosi，ca . 1.5 mmlo ngi. Foliola
1924" on the label. However，th is name has subcoriacea，la te obovata，ap ice rotundata vel
never been published by himself or other per- emarginata vel mucronulata，ba si obtusa，su -
sons. pra ascendenter pilosa， subtus dense
This plant is similar to C. macrosηla (D. ascendenter pubescentia，m argine integra;
Don) Miquel in having umbell-like short ra- foliola terminalia ca. 10 mmlo nga et ca. 8m m
cemes，b ut it has much shorter pedicels and lata，l ateralia similaria sed paullo minora.
much longer calyx lobes. The pedicels are Inflorescentiae axillares，s ubumbellatae，
about 1.5 mml ong and the calyx lobes are 6- pedunculo dense ascendenter pubescenti，ca .
7m ml ong which are almost three times as 15 mmlo ngo. Bracteae lanceolatae ca. 1.5 mm
long as the calyx tube，wh ile in C. macrostyla longae ca. 0.3 mml atae intus glabrae extus
pedicels are 3.5-7 mml ong and calyx lobes dense pilosae; bracteolae lineales ca. 1.3 mm
are 2.5-3.5 mml ong which are ali ttle longer longae intus glabrae extus dense pilosae.
than the calyx tube. This plant is，t herefore， Pedicelli dense ascendenter pubescentes 1.5
obviously different from C. macrosηla and mmlo ngi. Calyx ca. 8m mlo ngus adpresse vel
can be treated as ad ifferent species. Thus，w e ascendenter pubescens，4- fidus; tubo ca. 2m m
adopt the Schindler' sn ame for this species and longo; laciniis postici包angustetriangularibus
describe the species here. ca. 6m ml ongis，a pice in lacinulis ca. 1m m
一一139一一
140 植物研究雑誌第72巻第3号 平成9年6月
Fig. 1. a: Holotype of Campylotropis alba Schindler ex Iokawa & H. Ohashi. b:
Inflorescences. c: Label of the holotype，s howing Schindler's handwriting.
longis bifidis，l ateralibus et anticis anguste Ovarium ca. 2.5 mml ongum，m argine
triangularibus 6-7 mml ongis ca. 1m mla tis. ascendenter ciliatum，f aciebus glabratum，
Vexillum late obovatum unguiculatum (ungue brevissime stipitatum; stylus ca. 9m mlo ngus，
ca.l mmlo ngo incluso) ca. 9.5 mmlo ngum ca. am edio sursum glaber，a brupte incurvus;
8m ml atum，a pice obtusum; alae incurvae stigma capitatum，va lde brevissime pubescens.
unguiculatae，(u ngue ca. 1.7 mmlo ngo incluso) Legumen ignotum.
ca. 9.5 mml ongae 4.5 mml atae，l aminis Typus. China. Alexander Hosie 7
oblongis，a pice obtusis，b asi distincte (Holotypus in E，ph oto in TUS).
auriculatis; carina distincte incurva Known only the type specimen. Although
unguiculata，( ungue ca. 1.7 mml ongo) parte the exact locality is unknown，it might be
infera ca. 7.5 mm，s upera ca. 7m ml onga， collected in Sichuan，G uizhou or Yunnan in
apice subacuta，ba si leviter acuriculata. Stamina southwest China，b ecause，a ccording to
monadelpha，fi lamento vexillari ca. 2/31ibero， Bretschneider (1898)，H osie explored these
filamentis ceteris alte connatis，ca . 9m mlo ngis. regions in 1882-1883.
June 1997 Journal of Japanese Botany Vo .l72 No. 3 141
品
u
w
hw
uv

Fig. 2. Flower of Campylotropis alba. st: standard (view from inside)，w: wing (from
outside)，k: keel-petal (from outside)，g: pistil，c: calyx dissected and opened，up per
lobe in left (from outside)，a: androecium dissected and opened (from outside)，
b: bracteole (from inside). Scale bar =2 m m.
Another unknown plant is quite similar to et calyces dense albo-pubescens. Cetera ut in
C. pinetorum (Kurz) Schindler except hairi- typo.
ness. The former has dense long white hairs on Typus. China，Y unnan Prov.，M t. Lo
stems，b oth surfaces of leaves，i nflorescence Shuieh，s ummit of am ountain. Woody，fl ow-
axes and calyces，w hile the latter has very ers dark-red，he ight 3ft ，b lossom in October，
short silky hairs on upper surface ofleaves and 1937. McLaren's collectors no. u 201
tawny velutinous hairs on stems，in florescence (Holotypus in E，ph oto in TUS).
axes，ca lyces and lower surface ofleaves. We，
therefore，re gard this plant as av ariety of C. Wet hank the Herbarium of Royal Botanic
pznetorum. Garden，Ed inburgh (E)，fo r the loan of many
Campylotropis pinetorum (Kurz) specimens of Campylotropis.
Schindler in Repert. Spec. Nov. Regni. Veg.
11: 429 (1912). Reference
Bretschneider E. 1898. History of European botanical dis-
var. albopubescens Iokawa & H. Ohashi，
coveries in China. 1167 pp. Sampson Low，M arston and
var. nov. (Fig. 3) Company，Lo ndon.
Caules，fo lia utrimque，ax es inflorescentae
142 植物研究雑誌第72巻第3号 平成9年6月
Fig.3. Holotype of Campylotropis pinetorum (Kurz) Schindler
var. albopubescens Iokawa & H. Ohashi.
五百川裕，大橋広好:中国産マメ科ハナハギ属の2
新分類群
エジンバラ植物園標本館所蔵の中国産押し葉標 によってラベルに“Campylotropisalba Schindler，
本に基づいて，ハナハギ属に2新分類群を記載し n. sp. 18. 5. 1924"と書き込みが入れられているが，
た.1つは中国から採集されたHosie7で，この植物 この名前はこれまでに正式に発表されていない.
は花柄の先端に花が散形状につく点で，ヒマラヤ そこで， Schindlerの未発表名を尊重し，この植物を
c.
産の mαcrostylaに最もよく似ているが，小花柄 C. alba Schindler ex Iokawa & H. Ohashiとして記載
が約1.5mmと短いこと，事裂片がか7mmと長く，筒 した.他の一つは中国雲南省で採集された
部の約3倍もあることなどで明らかに別種として McLaren's collectors u2 01で，これは茎，葉の両面，
区別ができる植物である.これには，既にSchindler 花序，事に白綿毛を密生する点で，黄褐色のピロー
June 1997 Jomτlal of Japanese Botany Vol. 72 No. 3 143
ド状毛を持つ東南アジア産のc.pinetorumから区 今後，両種の生育地を確認し生品に基づく研究が
別される植物である.これを変種C.pinetorum var. 必要である.
albopubescens Iokawa & H. Ohashiとして記載した. (東北大学大学院理学研究科生物学教室)