94 WILSON EXPEDITION TO CHINA 
vissimi; stigmata satis brevia, crassa, emarginata v. bifida; glandula una, ventralis, 
basin pedicelli plus minusve subamplectens. 
1. Salix tetrasperma Roxburgh, Pl. Corom. 1. 66, t. 97 (1795); Fl. Ind. ed. 2, 
III. 753 (1832). — Forbes, Salicet. Woburn. 61, t. 61 (pro parte) (1829). — Anders- 
son in Svensk. Vetensk. Akad. Handl., 1850, 484 (Ost-Ind. Pilarter) (1851); in 
Jour. Linn. Soc. IV. 41 (pro parte) (1860); in Svensk. Vetensk. Akad. Handl. VI. 
1 (Monog. Salic.) (pro parte) (1867); in De Candolle, Prodr. XVI. pt. 2, 192 (pro 
parte) (1868). — Brandis, Forest Fl. Brit. Ind. 462, t. 58 (pro parte) (1874); Ind. 
Trees, 636 (pro parte) (1906). — Hooker f., Fl. Brit. Ind. V. 626 (pro parte) 
(1888). — Cooke, Fl. Pres. Bombay, Il. pt. 4, 661 (1907). — Talbot, Forest Fl. 
Bombay, 11. 557, cum icone mala (1911). 
INDIA. Madras Presidency: “banks of rivulets and moist places among the 
Cirear Mountains," W. Roxburgh (type, ex Roxburgh). East Bengal: without lo- 
eality (Herb. Griffith No. 4503); Mungut River, Jainteas, alt. 900 m., October 20, 
1867, C. B. Clarke (No. 5911*, 9; 59115, 9); “ Bengala inferior,” 1815, N. Wallich 
(No. 3707; sterile). Assam: Khasia, Nurtung(?), alt. 1200 m., December 1871, 
C. B. Clarke (No. 14580; with ripe fruits). United Provinces: Gorakhpur Di- 
vision, Domariaganj (Dumuniyagunj), (Wallich Cat. Nos. 3707 and 3707°; sterile). 
Doubtful are the two following specimens representing probably different forms: 
Eastern Bengal: Dacca, April 12, 1868, C. B. Clarke (No. 6780; sterile); 
Noatilee, alt. 700 m., November 12, 1883, C. B. Clarke (No. 34176°; with fruits, 
branchlets and petioles finely puberulent). 
Without having seen Roxburgh’s type specimen it is difficult to describe the 
typical S. tetrasperma, a name which has been applied to very different forms by 
different authors. As far as I can judge from Roxburgh’s description and plate the 
c? flowers have mostly more than 6 stamens, and the 9 flowers have long-stalked 
ovaries with a more or less distinct style, although not so long as the capsule, 88 
Roxburgh described it; the leaves are serrate, and the petioles are mostly less than 
1 cm. long. The specimens mentioned above may represent the typical S. tetra- 
sperma, which seems to be widespread in the subtropical and tropical parts of India 
and probably also in the Malayan peninsula, but does not, T believe, occur In 
Himalaya, expecially not between eastern Nepal and Kashmir, nor in China. 
Besides the following variety there is mentioned a var. 8 pubescens Lindley sub 
No. 37074 of Wallich’s Catalogue. By the kindness of the Keeper of the Herba- 
rium of the Royal Garden, Kew, Dr. O. Stapf, to whom 1 take this occasion to 
express my very best thanks for his kind help, the Arnold Arboretum has received à 
photograph of Wallich's No. 3707, showing very poor sterile specimens which were 
referred to our species by Andersson in 1851. 
Salix tetrasperma, var. suaveolens Andersson in Jour. Linn. Soc. IV. 41 
(1860); in Svensk. Vetensk. Akad. Handl. Vl. 2 (Monog. Salic.) (1867); in De 
Candolle, Prodr. XVI. pt. 2, 193 (1868). — Hooker f., Fl. Brit. Ind. V. 627 (1888). 
Saliz suaveolens Andersson in Svensk. Vetensk. Akad. Handl. 1850, 491 (1851). 
1 Different authors have given different names to these glands. A. Kerner in 
Verh. Zool.-Bot. Ges. Wien. X. 37 (Niederéstr. Weid.) (1860) uses the word “ in- 
nere (interna)" for the gland between the flower and the rachis of the catkin. 
By von Seemen and other authors this gland, which is always developed, is name 
‘ postica.” The gland between the flower and the bract, which is present only in 
some groups of species, has been named “ externa ” or “ antica," but Lundstrom 
and other authors use the terms antica and postica in the opposite sense. . 
propose the names ventralis for the gland between rachis and flower, and dorsalis 
for the gland between flower and bract. 
