SALICACEAE. — SALIX 121 



70. Salix longiflora Andersson in Jour. Linn. Soc. IV. 50 (1800) ; in De Candolle, 

 Prodr. XVI. pt. 2, 271 (1868). — Hooker f., Fl. Brit. Ind. V. 633 (1888). — Brandis, 

 Ind. Trees, 637 (1908). 



INDIA. Sikkim : " Lachen, alt. 9000 ped.," J. D. Hooker (type; 9 , of which 

 I have seen a co-type ex Herb. Gray). 



Judging by the co-type of this species I was at first incHned to unite it and S. 

 cathayana Diels (see p. 57), of which Diels says: " The differences between this 

 species and Salix longiflora And., of the Sikkim Himalaya, are obvious." Unfor- 

 tunately they are not so in the specimens before me. According to the descriptions 

 given by Andersson and Hooker f., S. longiflora may be distinguished by its long 

 9 catkins ("2-4 pollicaria" [Andersson] "2-5 in." [Hooker]) and by the appar- 

 ently longer leaves ("adulta 13^-2 J^ pollices longa" [A.]; " larger 3-6 in." [H.]). 

 In the co-t^T^e the largest leaves are up to 5 cm. long and 1.5 cm. broad. Of 

 the pubescence, there seem to be at least two forms: one with the leaves only 

 slightly silky beneath when young and glabrous later in the season; and another 

 with tomentose young leaves, the pubescence being thickish and somewhat brownish. 

 It needs a careful examination of many specimens before it is possible to decide, if the 

 Chinese and Sikkim forms are distinct or not. See S. cathayana Diels, p. 57. 



Burkill describes a variety S. longiflora, var. albescens (in Jour. Linn. Soc. 

 XXVI. 530 [1899]), the type of which was collected by Mussot (No. 347) at Ta- 

 chien-lu, Szech'uan. Not having seen the specimen, I cannot tell from the short 

 description to what species this plant may really belong. 



71. Salix cathayana Diels. See p. 57. 



72. Salix macroblasta Schneider. See p. 58. 



73. Salix resecta Diels in Not. Bot. Gard. Edinburgh, vol. VII. 281 {PI. Chin. 

 Forrest.) (1912). 



CHINA. Yunnan : Moist situations on the margins of thickets on the eastern 

 flank of the Tali Range, alt. 3000 m., July 1906, G. Forrest (No. 4602, type; with 

 fruits) . 



In the co-tjT3e before me the catkins are at the end of branchlets from 2 to 3 cm. 

 long, with normal leaves and are not subsessile, as described by Diels; they are 

 from 5 to 9 cm. long and about 1 cm. thick. The nearly sessile old flowers or 

 fruits are loosely silky and have a rather long style, mostly cleft at the apex, with 

 short bifid stigmas. The bracts are truncate at the apex. Without having seen 

 any cf specimen or good sterile material it seems impossible to judge the relation- 

 ship of this species. 



74. Salix driophila Schneider. See p. 59. 



75. Salix amphibola Schneider. See p. 60. 



Sect. 14. HETEROCHROMAE Schneider, n. sect. 



Arbores v. frutices. Folia satis magna, lanceolata, ovato-lanceolata v. late ellip- 

 tica, integra v. breviter serrata, subtus pallida v. concoloria, textura tenui, sed 

 firma, initio sericea. Amenta pedunculata, satis longa, cylindrica, densiflora; 

 flores cf diandri, filamentis liberis pilosis, glandula una ventrali, bracteis oblongis 

 obtusis; ovaria breviter v. longius pedicellata, sericea v. glabra, stylis distinctis 

 apice bifidis stigmatibus bifidis oblongis, glandula una ventraU pedicellis breviore 

 V. duplo longiore, bracteis ovatis obtusis. 



This section differs from sect. Phylicifoliae and Hastatae in the longer catkins, 

 in this resembling sect. Eriostachyae. The leaves are thin but firm and show a 

 fine but distinct reticulation beneath. 



