SALICACEAE. — SALIX 45 
Western Szech’uan: Mupin, thickets, alt. 2300-3000 m., June 
1908 (No. 14017; 9). 
In the branches, the size and shape of the large leaves, the glabrous peduncle 
and rhachis and in the glabrous bracts there seems to be no real difference between 
this species and S. magnifica Hemsley. But the typical S. magnifica has: ovaria 
longius pedicellata, oblonga v. ovata, glabra, apice attenuata stylo bifido stigmati- 
bus brevioribus bifidis coronata; bracteae ovato-oblongae. The length of the 
bracts and of the pedicels differs very much according to the age of the flowers, 
the uppermost in the catkins being the youngest. See also the description of the 
sect. Magnificae on p. 113. 
The specific name is derived from ovAdrptxos, with curly hair. 
Salix pella Schneider, n. sp. 
Frutex 4-6 m. altus; ramuli elongati, crassi, in sicco nigro-purpuras- 
centes, glabri. Folia oblongo-elliptica v. elliptica, apice acuta v. sub- 
obtusa, basi rotunda v. obtusa, supra viridia, laevia, costa flavescente 
subimpressa, subtus distincte pallida, ad costam pilis longis sericeis 
obtecta v. glabra, costa nervisque prominulis, nervis lateralibus fere 
modo S. magnificae Hemsley ante marginem evanescentibus, 1 pro 1 cm., 
reticulo ex parte satis distincto, margine plus minusve glanduloso- 
serrato-dentata v. crenulata v. ex parte integra, minora 3.5-8 cm. longa 
et 2-2.5 cm. lata, maxima usque ad 13 em. longa et 5.5 em. lata; petioli 
satis breves, 6-15 mm. longi, glabri v. pilis sericeis sparse obtecti, 
purpurascentes v. flavescentes. Amenta fructifera pedunculo 1-2 cm. 
longo sericeo suffulta, 4-9 em. longa, circiter 1.2 em. crassa, rhachi 
sericea. Fructus maturi circiter 5 mm. longi, glabri, brevipedicellati, 
pedicello glandulam unam ovato-truncatam subaequilongo; styli ut 
videtur mediocres, apice bifidi, stigmatibus bifidis; bracteae glabrae, 
flavo-brunneae, ovatae, apice truncatae, capsulis 3plo breviores. 
Western Szech'uan: west of Kuan Hsien, Niu-tou-shan, wood- 
lands, alt. 2600-3000 m., October 1910 (No. 4350, type; bush 4-6 m.; 
with fruits). 
"This species differs from S. magnifica Hemsley in its shorter petioles, smaller and 
narrower, more distinctly serrate leaves, its much shorter catkins and in its trun- 
cate bracts. The nervation of the leaves is somewhat intermediate between that of 
sections Magnificae and Eriostachyae. At first I thought it might be a hybrid 
between S. magnifica and S. moupinensis Franchet which grow in the same region 
and has the same kind of silky pubescence on the under side of the midrib of the 
leaves, but the rhachis of the catkins is more glabrous in Franchet's species. The 
color of the under side of the leaves is the same as in S. magnifica, while the leaves 
of S. moupinensis Franchet have a greenish shining lower surface. S. pella may be 
nearly related to S. plocotricha Schneider, which is readily distinguished, however, 
by its hairy ovaries. As long as the male flowers are unknown it is always difficult 
to determine the real relationship of a Willow. 
The name is derived from weAAds, dark colored. 
