192 WILSON EXPEDITION TO CHINA 
76. Salix heterochroma Seemen. See p. 61. 
77. Salix isochroma Schneider, n. sp, 
Frutex 1.2 m. altus; ramuli annotini glabri, olivaceo-fusci, deinde purpureo- 
brunnescentes. Folia ovato-oblonga v. oblanceolata, basi rotunda, apicem versus 
plus minusve subito acuminata v. acuta, supra viridia, costa pilis fulvis et albis 
obdita excepta glabra, subtus fere concoloria, viridescentia, pilis sericeis saepe fulvis 
plus minusve obtecta, interdum paullo glabrescentia, costa nervisque circiter 3 pro 
1 em. prominulis et tenuiter reticulata, margine satis indistincte et distanter glan- 
duloso-serrata, ex parte integra, minora 2-4.5 cm. longa, 1-1.5 em. lata, maxima 
ad 7 cm. longa et ad 2.3 cm. lata; petioli 4-6 mm. longi, graciles, ut costa pilosuli, 
supra sulcati. Amenta (fructifera tantum vidi) pedunculo circiter 5 mm. longo 
piloso foliola minima lanceolata 1-2 gerente suffulta, 4.5-5.5 em. longa, circiter 1 cm. 
crassa, laxe sericea; flores 9 (inter fructus remanentes) brevipedicellati; ovaria 
ovato-oblonga, apicem versus attenuata, sericea, bracteas fere triplo superantia, 
stylo distincto ad medium bifido stigmatibus partitis oblongis divaricatis coronata; 
glandula anguste-oblonga, pedicellum duplo superans, bracteis late-ovatis brunne- 
scentibus extus sericeis intus subglabris aequilonga. Fructus anguste oblongi, cir- 
citer 4 mm. longi, breviter pedicellati, subsericei. 
CHINA. Western Szech'uan: Wa-shan, alt. 3300-3800 m., July 1903 
(Veitch Exped. No. 4524, type; with fruits). 
This species differs from S. heterochroma Seemen in the greenish under surface 
of the leaves, which are a little serrulate, and in the glands being longer than the 
short pedicels. It seems to be only a low shrub. The gland is very like that of S. 
hylonoma Schneider, and S. isochroma may be most nearly related to that species! 
The specific name is derived from leos, equal, and xpapa, color. 
78. Salix omeiensis Schneider, n. sp. Reps 
Arbor ad 10 m. alta; ramuli annotini vetustioresque glabri, purpureo-nign; 
gemmae purpureae, ovato-oblongae, adpressae, glabrae v. pilis sparsis praeditae, 
petiolis subtriplo breviores. Folia satis magna, late ovata v. paulo obovata, basi 
rotunda, apice subito acutata v. sensim acuta, supra saturate viridia, glabra, subtus 
valde pallida, saepissime tantum ad costam flavam sericea (juniora tota sericea?), 
utrinque costa nervisque circiter 1-2 pro 1 cm. prominentibus, et (subtus dis- 
tinctius) reticulata, margine breviter et distanter glanduloso-serrata v. integra, 
minora (pedunculorum) 3-6 em. longa, 1.8-3.5 cm. lata, maxima usque 11 cm. 
longa et 5.3 cm. lata; petioli 7-15 mm. longi, glabri v. initio sericei. Amenta (fruc 
tifera tantum vidi) pedunculo 1-1.5 em. longo piloso folia 1-2 normalia gerente 
suffulta, 10-12.5 em. longa, circiter 1.1 em. crassa, rhachi sparse pilosa. Fructus 
brevipedicellati, ovato-oblongi, apice angustati, circiter 3-3.5 mm. longi, glabri 
(stylis marcescentibus distinctis apice bifidis, stigmatibus oblongis bifidis); bracteae 
ovatae, subacutae, brunneae, extus sericeae, intus glabratae, pedicellis 2-3plo 
longiores; glandula una crassiuscula, saepe plus minusve latior quam alta, 
cello subduplo brevior v. subaequilonga, oblonga. 
CHINA. Western Szech'uan: Mt. Omei, May 1904 (Veitch Exped. 
No. 5193, type; tree 10 m., with fruits). : 
This peculiar species seems to be related to S. heterochroma Seemen, but differs 
widely from it in its broad leaves and in its longer petioles. The long fruiting 
aments somewhat resemble those of S. Fargesii Franchet and its relatives, but 
reticulation of the leaves is more like that of the former species. 
_ Sect. 15. PHYLICIFOLIAE Dumortier, Fl. Belg. Prodr. 12 (1827).— E. Fries 
in Syllog. Pl. Nov. Il. 36 (pro parte) (1828). — Andersson in Svensk. Vetensk. 
