SALICACEAE. — SALIX 67 
longi, supra canaliculati et plerique puberuli. Amenta (plantae cultae) 
praecocia v. subpraecocia, sessilia v. basi foliolis parvis 2-3 lanceo- 
latis subtus sericeis integris suffulta, cylindrica, densiflora, rhachi 
sericeo-villosa, 7 ad 2.5 longa et ad 1 em. crassa, 9 2-3 em. longa, 
circiter 0.8 cm. crassa, fructifera ignota; flores ¢ glandula una ventrali 
oblonga angusta obtusa bracteis circiter 14 aequante, filamentis 
glabris v. basi pilosis liberis v. interdum basi connatis, antheris ovali- 
bus initio purpureis deinde flavis; bracteae oblongae, obtusae, brun- 
nescentes, utrinque sparse sericeo-villosae; ovaria subsessilia, glabra 
(v. sparse sericeo-villosula) ovato-oblonga, glandula una ut in flore 
c', stylo distincto (ovarium juvenilem aequante) duplo breviore apice 
interdum bifido, stigmatibus brevibus emarginatis coronata; bracteae 
lis floris 7 similes v. obovato-oblongae, pleraeque longius densiusque 
sericeae, 34 ovarii aequantes. 
Western Szech'uan: Mupin, thickets, alt. 2000 m., November 
1908 (No. 1403, co-type; bush 2-3 m. tall; sterile and specimens 
from euttings cultivated under the same number in the Arnold Ar- 
boretum, coll. April 24, 1912, type, 9 , and April 13, 1910, co-type, 9); 
west and near Wén-ch'uan Hsien, alt. 1600-2000 m., side of streams, 
November 1909 (No. 1421; bush 2-3.6 m. tall; sterile; 7 specimens 
from euttings cultivated under the same number in the Arnold Arbore- 
tum, coll. April 1910, flowers apparently touched by frost, bracts 
short, roundish); Mupin, thickets in river-bottoms, alt. 2000-2500 m., 
October 1910 (No. 4364; tree 6-9 m. tall, girth 0.9-1.8 m.; sterile); 
same place (No. 4368; tree 5-8 m. tall, girth 1-1.5 m.; living plants in 
Arboretum); west of Kuan Hsien, Pan-lan-shan, woodlands, alt. 
2600-3000 m., October 1910 (No. 4357; bush or small tree, 4.5-9 m. 
tall; sterile); Wa-shan (No. 1424; living plants from cuttings, 7 and 
9 , in the Arnold Arboretum). 
The type of this species differs from the other species of this section by its 
mostly glabrous ovaries. No. 2125 from Wa-shan, thickets, alt. 2300-2600 m., 
June 1908, bush 2.4 m. tall, with glabrous fruits and not yet fully developed leaves 
is certainly very near this species. It differs, as far as I can see, only in the oval 
bracts which are often denticulate at the apex, in the often deeply cleft styles and 
in the sessile fruits. The leaves are up to 5.5 cm. long and to 2 cm. broad and 
are not different from those of the type. 
The name is given in compliment to Mr. Alfred Rehder. 
Salix Rehderiana, var. brevisericea Schneider, n. var. — ? 
Frutex 1.5-3 m. altus; ramuli novelli sericeo-villosi, annotini glabri, 
fusci, dein brunneo-cinerei. Folia juvenilia lanceolata, oblanceolata v. 
