SALICACEAE. — SALIX 53 



Salix dyscrita Schneider, n. sp. ~ 



Frutex 1.5-3 m. altus, ramosus, erectus; ramuli initio sericeo- 

 tomentelli, deinde glabri v. glabrescentes, olivaceo-brunnei v. plerum- 

 que cinerascentes. Folia (juvenilia tantum visa) elliptica, utrinque 

 obtusa, supra viridia, tantum costa subincisa villosula v. glabra, 

 subtus cinerea v. paulo pruinosa, initio distincte sericea v. sericeo- 

 tomentella, mox subglabra, tantum ad costam sericea, nervis utrinque 

 satis difficile visibilibus, margine integra, minora circiter 1 cm. longa et 

 0.6 cm. lata, majora usque ad 2.5 cm. longa et 1 cm. lata; petioli 1-3 

 mm. longi, sericei. Amenta cf pedunculis sericeo-villosis vix 1 cm. 

 longis folia 3^ normalia gerentibus suffulta, rhachi villosa, 3-4.5 

 cm. longa, 0.6-0.9 cm. crassa, densiflora; flores cf diandri, filamentis 2 

 liberis ad medium villosis, antheris ovalibus flavis ; glandula ventralis 

 ovato-oblonga, bracteis late ovatis in eodem amento viridibus v. fere 

 nigro-brunneis intus glabris extus sericeis v. subglabris satis longe 

 sericeo-ciliatis subduplo brevior, dorsalis minima. 



Western Szech'uan: Ching-chi Hsien, Ta-hsiang-ling, alt. 

 2300-3000 m., May 1908 (No. I429''i«, type; bush 1.5-3 m.; c?). 



This species resembles S. dissa Schneider, but differs from it in the somewhat 

 silky under surface of the leaves, the larger and denser aments, the larger anthers, 

 the very small dorsal gland and in the slightly larger bracts which are partly 

 greenish. S. dyscrita may be of hybrid origin. At first I thought that Wilson's 

 No. 2129 (see S. driophila Schneider, p. 59) from the same place might repre- 

 sent the 9 plant of S. dyscrita, but the leaves have a denser and different 

 pubescence. 



The specific name is derived from bvaKpiros, ambiguous. 



Salix hypoleuca Seemen in Bot. Jahrh. XXXVI. Beibl. LXXXII. 31 

 (1905). — Leveill^ in Bull. Soc. Bot. France, LVI. 299 (1909). 



Western Szech'uan: Mupin, thickets, alt. 2300-2600 m. (No. 

 141 1 ; shrub 1.5-2.4 m.; 9 ; No. 141 1"; d'); same locality, November 

 1909 (No. 1404; shrub 0.75-1.5 m., sterile; gemmae ovato-oblongae, 

 subacutae, purpureae, petiolis aequilongae) ; same locality, woodlands, 

 alt. 2600-3000 m., October 1910 (No. 4336; shrub 2-4 m.; sterile; foliis 

 utrinque acutis); same place (No. 4367; bush 1.5-2.4 m.; living plants 

 in the Arboretum). Western Hupeh: without locality, April 1900 

 (Veitch Exped. No. 334, in part; mixed with S. glandulosa Seemen; 

 with fruits; folia ovata v. ovato-elliptica) ; Fang Hsien, alt. 2000- 

 3000 m. (Nos. 4434, 4437; living plants in the Arnold Arboretum). 

 Shensi : "In kia pu, Lao-y-san," March, G. Giraldi (No. 5362; type, ex 

 Seemen); "Lao-y-san," June 4, 1S97, G. Giraldi (with fruits; co-type). 



