SALICACEAE. — SALIX 147 



Sect. 23. SERPYLLA Schneider, n. sect. 



A sections Lindleyanae praecinue dilTert glandulis duobus florum cf bipartitia 

 V. bilobis pseudodiscum 4-i)artitum formantibus, stylis florum 9 gracillimis 

 bipartitis ramia divaricantibug, stigmatibus minimis cmarginatis. 



According to these characters the following species seems to represent a distinct 

 group. 



123. Salix Serpyllum Andersson in Jour. Linn. Soc. IV. 55 (1860) ; in De Can- 

 dolle, Prodr. XVI. pt. 2, 292 (1868). — Hooker f., Fl. Brit. Ind. V. 634 (1888). — 

 Brandis, Ind. Trees, 638 (1906). 



Salix longipes Hooker & Thomson in Herb. Ind. Or. apud Andersson in Jour. 

 Linn. Soc. IV. 56 (pro synon.) (1860). 



INDIA. Sikkim : " reg. alp., alt. 10-14000 [non 17000] ped.," J. D. Hooker (cf 

 and 9 types). 



Having seen the types from the Kew Herbarium [Lachen, 10000', June 3, 49], I 

 agree with Andersson, who says: " Distinctissima est species, crescendi modo (fere 

 ut in Thytno serpyllo) ramis et foliis omnibus diversa." The fruiting aments are 

 up to 4.5 cm. long; while the young 9 catkins are only from 1-1.5 cm. in length. 

 Andersson describes the rachis of the cf catkins as " aureopilosa." I find only a 

 grayish pubescence, otherwise his description is correct. 



Sect. 24. GLAUCAE E. Fries,i Syllog. PI. Nov. II. 36 (pro parte) (1828).— 

 Borrer in Hooker, Brit. Fl. 422 (pro parte) (1830); in Loudon, Arb. Brit. III. 1543 

 (pro parte) (1838). 



Salix, sect. Frigidae W. D. Koch, De Salic. Comm. 53 (pro parte) (1828). 

 (Salix, sect. Niveae s. Glaucae, c. Sericeae Andersson in De CandoUe, Prodr. 



XVI. pt. 2, 280 (1868). 

 Salix, sect. Sericeae Koehne, Deutsche Dendr. 93 (1903). — Seemen in Ascher- 



son & Graebner, Syn. Mitteleur. Fl. IV. 57 (1908). 



Finitices erecti, plerique parvi. Folia elliptico-lanceolata v. elliptica usque obo- 

 vata, Integra, mollia. Amenta plus minusve foliato-pedimculata; flores d' glandu- 

 lis duobus instructi, antheris (an semper?) rubescentibus; flores 9 glandula una 

 ventrali (v. interdum etiam dorsali) instructi, ovariis sericeo-lanatis pedicellatis, 

 stylis distinctis saepe apice bifidis, stigmatibus bifidis oblongis. 



This section shows a relationship with several other groups, and it is with some 

 doubt that I refer to it S. floccosa Burkill and S. opsimantha Schneider. 



124. Salix glauca Linnaeus, Spec. 1019 (1753). — Andersson in De Candolle, 

 Prodr. XVI. pt. 2, 280 (1868). — Lundstrom in Nov. Act. Soc. Sci. Upsal. 

 1877, 38 (Weid. Now. Semljas) (1877). — Herder in Act. Hart. Petrop. XI. 435 

 (1891). — Wolf in Izv. S.-Peterburg. Licsn. hist. V. 24, t. 24, fig. 5, t. 25, fig. 1-10 

 (Mam. Ihyn. ILn Eepon. Pocc.) (1900). — Schneider, III. Handb. Laubholzk. I. 

 41, fig. 21 e-g, 25 k (1904). — Seemen in Ascherson & Graebner, Syn. Mitteleur. 

 Fl. IV. 88 (1909). 



For further information see Herder, I.e., and von Seemen, 1. c. 



NORTHEASTERN ASIA. Transbaikalia to Kamtchatka. 



A variable species which seems to be connected by intermediate (or hybrid?) 

 fonns with S. arctica Pallas, S. anglorum Chamisso, S. lanala Linnaeus, etc., see 

 also Lundstrom, 1. c. 



125. S. opsimantha Schneider. See p. 63. 



^ Fries's name is older than sect. Frigidae W. Koch. 



