SALICACEAE. — SALIX 41 



nata; glandulae duae, dorsalis lata, ovata, apice obtusa, ventralis baud 

 minor, apice saepe bifida; bracteae oblongae, obtusae, flavae, utriiique 

 villosae, v. pleraeque extus basi excepta glabrae. Planta 9 (fructifera!) ; 

 ramuli glabri, sublucidi, purpurascentes, deinde cinereo-olivacei v. eine- 

 rei. Folia obovato-elliptica, ovata v. rarius ovato-lanceolata, basi acuta 

 V. obtusa, apice obtusa et subito breviter acuminata v. plus minusve 

 sensim acuta, supra intense viridia, subtus pallide viridia v. in eodem 

 ramulo albescentia, margine densissime subtiliter glanduloso-serrata, 

 minora circiter 3.5 cm. longa et 1.8 cm. lata, maxima usque ad 6 cm. 

 longa et 3.2 cm. lata v. ad 7 cm. longa et 2.5 cm. lata; petioli 5-10 

 mm. longi, superne ad apicem glanduliferi. Amenta pedunculis 2-3 

 cm. longis glabris foliiferis (foliis 3-5 ceteris simillimis) suffulta, 2.5-4 

 cm. longa et 1.3 cm. crassa, rhachi villosa, densiflora; fructus gla- 

 bri, breviter pedicellati, pedicello glandulam unam dorsalem latam 

 bifidam paullo longiore; ovaria 7-8 mm. longa, ovato-conica, apice 

 stigmatibus ut videtur brevibus subsessilibus coronata. 



Western Szech'uan: mountains west of Tachien-lu, alt. 2600- 

 3800 m., June 1904 (No. 4518, type; tree 6-7 m. tall; d^); same local- 

 ity, September 1904 (No. 4518^; with fruits). 



This species seems most nearly related to S. pentandra Limiaeus and may rep- 

 resent only a variety of that species. The c? specimen differs from those of S. 

 pentandra collected in the Altai Mountains only in the broader glands, the shape 

 of which is very variable in both the species. The fruiting branch bears on the 

 upper part leaves which are very whitish underneath. 1 have not seen or found a 

 description of a form of S. pentandra Linnaeus with such leaves. The 9 flowers 

 may present some better differences, but the fruits are very much ahke. 



There is a sterile specimen from western Hupeh: Changj'ang Hsien, alt. 800 m., 

 November 1907 (No. 1441; tree 18 m. tall, girth 2 m.); the leaves of which are 

 glabrous and white tinged with red beneath. They are elliptic-lanceolate, from 

 6-10 cm. long and from 2-3.5 cm. broad (others are deformed); the petioles are 

 from 8-10 mm. long and bear two glands; the stipules are semicordate, half as 

 long as the petioles and glandular-serrate. From this very tree Mr. Wilson sent 

 cuttings to the Arnold Arboretum, from which a young plant is growing very freely. 

 The leaves are ovate- or elliptic-lanceolate, acute at the base and acuminate at the 

 apex, measuring from 8 to 11 cm. in length and from 2.5 to 3.6 cm. in width. They 

 show the same white color underneath. I suppose that No. 1441 may belong to 

 this new species. 



The specific name is derived from Trapan'KTjaios, resembling. 



The specimens of my No. 1441 came from a tree which is common in one locality 

 in Changyang Hsien growing by the side of watercourses between altitudes of 

 from 700 to 800 m. This tree grows tall (20-25 m.) and has a straight, rather 

 slender trunk and dark gray deeply fissured bark. The branches are rather sparse, 

 short, spreading, rather slender, and form a loose oval crowTi. Pictures of this 

 tree will be found under Nos. 584 and 586 of the collection of my photographs 

 and in my Vegetation of Western China, Nos. 459 and 460. E. H. W. 



