98 WILSON EXPEDITION TO CHINA 



subamplectentem 4-5plo superantes; stigmata parva, subsessilia; bracteae late 

 ovatae, subacutae, laxe villosulae, pedicello vix aequilongae v. deciduae. 



CHINA. Fokien: without locality, Dunn's Exped. to central Fokien, April 

 to June 1905 (Hongk. Herb No. 3509; with fruits). 



This specimen is named S. tetrasperma Roxburgh in the Hongkong Herbarium. 

 It seems to belong to this section, but differs widely from all the other species in its 

 small leaves. Without having seen young 9 and also cf flowers the real relation- 

 ship of the new species cannot be established. S. tetrasperma Dunn & Tutcher from 

 Kwangtung, "muddy banks of the Canton River; Shekmun near Canton," may 

 be our new species. 



Sect. 2. PENTANDRAE Dumortier, in Bijdr. Natuurk. Wefensch. I. 58 (Verh. 

 Geslacht Wilgen, 17) (1825). — Borrer in Hooker, Brit. Fl. 416 (1830); in Loudon, 

 Arh. Frut. Brit. III. 1503 (1838). — Andersson in Svensk. Vetensk. Akad. Handl. 

 VI. 30 (Monog. Salic.) (1867); in De CandoUe, Frodr. XVI. 2 (1868). — Seemen, 

 Salic. Jap. 15 (1903). 



Salix, sect. Lucidae Andersson in Svensk. Vetensk. Akad. Handl. VI. 30 {Mo- 

 nog. Salic.) (1867). — Seemen in Ascherson & Graebner, Syn. Mitteleur. Fl. 

 IV. 56 (1908). 



Arbores v. frutices alti. Folia pleraque magna, lanceolata v. ovalia, saepissime 

 acuminata, iis sectionis 1 simiha, juveniha saepe viscosa; petioU saepe glanduliferi. 

 Amenta d^ subpraecocia v. coetanea, satis densiflora, flioribus pleiandris,i glan- 

 dulis duobus ut in sect. 1, bracteis concoloribus; amenta 9 floresque ut in sect. 1; 

 glandulae duae, distinctae.^ 



9. Salix dictyoneura Seemen in Bot. Jahrb. XXIX. 275, t. 6, II. fig. A-D (1900). 

 CHINA. Southeastern Szech'uan: Nan-ch'uan, A. von Rosthorn (No. 



1511, type; with fruits). 



I have seen only a photograph and one leaf of the type specimen of this species. 

 According to the author S. dictyoneura belongs to sect. Safsaf; he describes the 

 glands as follows: " glandula brevi stipitem 6-plo longiorem amplectente bi- 

 partita parte postica lata Integra parte antica tripartita." To me it seems al- 

 ways very difficult to form an opinion from withered glands of fruiting specimens. 

 It would be a very pecuUar fact if an African species like Salix safsaf Forskal had a 

 relative in central China. I suppose that S. dictyoneura stands very near S. Wil- 

 sonii Seemen. 



10. Salix Wilsonii Seemen. See p. 40. 



11. Salix glandulosa Seemen in Bot. Jahrb. XXI. Beibl. LIII. p. 55 (1896); 

 XXIX. 276 (1900); Salic. Jap. 22, t. 1, fig. A-F (1903). — L6veill6 in Bull. 

 Acad. Intern. Geogr. Bot. XIV. 208 (1904). — Pavolini in Nuov. Giorn. Bot. Ital. 

 n. ser.XV. 439 (1908). — Nakai in Jour. Coll. Sci. Tokyo, XXXI. 214 {Fl. Kor. II) 

 (1911). — Koidzumi in Tokyo Bot. Mag. XXVII. 87 (1913). 



Salix triandra, var. vulgaris Seemen in Bot. Jahrb. XXIX. 276 (1900). 



CHINA. Shensi: Ko lu pa, June 1890-96, G. Giraldi (No. 1158; ex von 

 Seemen). 



^ The typical S. pentandra Linnaeus has a ventral gland which is higher than 

 broad and does not embrace the pedicel, while in S. glandulosa Seemen and other 

 species this gland is very similar to the ventral gland of the first section. These 

 species may probably be better referred to a separate section. 



