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, cf ad 2.5 longa et ad 1 em. crassa, 9 2-3 cm. longa, 

 circiter 0.8 cm. crassa, fructifera ignota; flores cf glandula una ventrali 

 oblonga angusta obtusa bracteis circiter }/£ aequante, filamentis 

 glabris v. basi pilosis liberis v. interdum basi connatis, antheris ovali- 

 bus initio purpureis deinde fiavis; bracteae oblongae, obtusae, brun- 

 nescentes, utrinque sparse sericeo-villosae; ovaria subsessilia, glabra 

 (v. sparse sericeo-villosula) ovato-oblonga, glandula una ut in fiore 

 cf", stylo distincto (ovarium juvenilem aequante) duplo breviore apice 

 interdum bifido, stigmatibus brevibus emarginatis coronata; bracteae 

 iis floris d" similes v. obovato-oblongae, pleraeque longius densiusque 

 sericeae, ^ 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 cuttings cultivated under the same number in the Arnold Ar- 

 boretum, coll. April 24, 1912, type, 9 , and April 13, 1910, co-type, d'); 

 west and near Wen-ch'uan Hsien, alt. 1600-2000 m., side of streams, 

 November 1909 (No. 1421; bush 2-3.6 m. tall; sterile; cf specimens 

 from cuttings 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, cT 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. 



