Fagopyrum wenchuanense and Fagopyrum qiangcai , Two New Species of Polygonaceae from Sichuan, China

2011·3.3 MB·English

by  Ji-Rong Shao

Fagopyrum wenchuanen.se and Fagopyrum qiangcai, Two New Species of
Polygonaceae from Sichuan, China
,1 ,1 1
Ji-Rong Shao Mei-Liang ZhouXue-Mei Zhu,2* De-Zhou Wang and Da-Quan Bai
'School of Life Sciences, Sichuan Agricultural University, Yaan, Sichuan, (>25014,
People's Republic of China
2School of Resources and Environment, Sichuan Agricultural University, Yaan, Sichuan, 625014,
People's Republic of China
*Authors for correspondence: [email protected], [email protected]
as F. qiangcai D. Q. Bai and F. wenchuanense J. R.
Province, China, are described and illustrated.
lentum Moench based on its leafy base, triangular
leaves, and terminal or axillary racemes. The new
Materials and Methods
Agricultural University. Selected seeds were soaked
differs in its caespitose habit, the plants often with
distilled water, and hydrolyzed in 1 mol/L HC1 at
variable in length, and the capsules are ellipsoid-
triangular or broadly ovoid-triangular, 3-3.5 X 2.5-3
Key words: China, Fagopyrum, IUCN Red List, and Chen (1985); the chromatid classification
Fagopymm Mill. (Polygonaceae). It is an annual Taxonomic Results
1. I i | m uin «|i ii ii D. Q. Bai, sp. nov. TYPE:
species are found (Li, 1998; Ohnishi, 1998). In growth of grass on slopes, 1580 m, 16 July 2006,
J. R. Shao & D. Q. Bai Ghassot 4396 (holotype,
SAU). Figure 1.
4500 m (Wang, 1989; Ohnishi & Yasui, 1998).
Ohnishi (1998) reported that the cultivated common
China to the Himalayas. In July 2006, we found two
Novon 21: 256-261. Published on 27 June 2011. doi: 10.3417/2009107
Volume 21, Number 2 Shao et al. 257

Volume 21, Number 2 Shao et al. 259
2011 Fagopyrum (Polygonaceae) from China
a:
(cid:9830) r
** *
r* % 4 4. *
*
* "tjs
W hr u Ri n n u u
M tttt D w R n IIM If U K « RUN
w nr it u
0» (I It
n bi n
It X| IF U
cell chromosomes. —B. F. gracihpe.s (Hemsl.) Dammer ex Diels,
ideograms. A, C from Bai Ghassot 4472; B, D from Bai i f 4491; E, G from Bai Ghassot 4483; F, H from Bar Ghassot 4475
(all at SAU).
260 Novon
et al.
2011 (Polygonaceae) from China
Hshh'g Co!, Blij^g [in Chinese]^ ailemK JOUmal ^