60 WILSON EXPEDITION TO CHINA 
sulis folia 3-4 normalia gerentibus suffulta, rhachi sericeo-villosa, 
4-6 em. longa, 0.8(-0.9) em. crassa, densiflora; flores c? diandri, fila- 
mentis liberis fere ad medium villosis quam bracteae duplo longioribus, 
antheris flavis ovalibus; glandula una ventralis, oblonga, satis crassa, 
bracteis ovato-oblongis obtusis intus glabris extus (apice interdum 
excepta) sericeis flavo-brunneis subtriplo brevior; ovaria sericea, 
sessilia, juvenilia crasse ovata, dein ovato-oblonga, stylo satis brevi 
apice bifido stigmatibus breviter oblongis partitis divaricatis coronata; 
bracteae late ovato-rotundae, intus glabrae, extus sericeae et ciliatae, 
&d apicem glabrescentes, flavo-brunneae, ovariis initio vix duplo 
breviores; glandula una, bracteis subaequilonga, oblonga, crassa. 
Fructus ignoti. . 
Western Szech'uan: Mupin, thickets, bush 1.5-2.4 m., alt. 
2300-2600 m., June 1908 (No. 2150; co-type, c); Chiu-ting-shan, 
thickets, alt. 2300-2600 m., May 23, 1908 (No. 2123, type; bush 3 
1n 9). 
The c? and 9 plants look very much alike, but the leaves of the males are a little 
more glabrescent, and the c' plant resembles somewhat S. dyscrita Schneider, 
but that species has a small dorsal and a ventral gland. The 9 specimens are not 
unlike S. plocotricha Schneider, which is much more glabrous and has longer petioles. 
The fruiting. state may be represented by No. 2129 from Ching-chi Hsien, 
thickets, alt. 2000-2600 m., June 1908, bush 3 m. The following differences may 
only be due to the difference in age between No. 2123 and 2129: folia majora, supra 
tenuiter sparse adpresse pilosa, costa puberula subtus cinerea, tota facie molliter 
sericeo-tomentella, nervis satis prominentibus circiter 3-4 pro 1 cm., minutissime 
reticulata, elliptica, utrinque obtusa v. apice subacuta, minora 2.2-4 cm. longa 
et 1.2-1.8 cm. lata, maxima ad 7 em. longa et ad 2.3 cm. lata. Amenta fructifera 
eodem modo pedunculata, 5.5-7.5 cm. longa et 1 em. crassa. Fructus stylo €x- 
cluso 4 mm. longa, ovata, apice angustata (flores inter fructus remanentes iis 
S. driophilae Schneider vix diversa). 
The specific name is derived from Opíos, thicket, and d:Aé@, I love. 
Salix amphibola Schneider, n. sp. 
Frutex 1.5 m. altus; ramuli hornotini plus minusve sericeo-villosi, 
annotini subglabri purpurascentes, vetustiores cinerascentes. Folia 
ovato-elliptica v. late elliptica, basi obtusa v. rotunda, apice subro- 
tunda usque subacuta, supra intense viridia (initio ut videtur etiam 
facie laxe villosula), costa pilis fulvis et albis puberula excepta glabra, 
subtus cinerea, plus minusve sericea v. costa elevata flava excepta 
glabra, nervis circiter 2 pro 1 cm. prominulis, tenuissime v. vix reticu- 
lata, margine integra, minora 2.54 em. longa et 1.5-2 cm. lata, maxima 
ad 5 cm. longa et 3.3 cm. lata v. ad 5.5 cm. longa et 3 em. lata; petioli — 
(3-)5-11 mm. longi, villosuli. Amenta 9 pedunculo villosulo circiter 
