54 N. J. ANDERSSON, 



Tribus B. SALICES mANDR^. 



Frutices humiles vel elatee rarius in formam arboris excrescentes, ramis 

 tornlosis vel vimineis. Folia lanceolata vel ovalia, saspe etiam obovata. Amenta 

 pra^cocia vel coastanea, pedunculo foliis destituto vel instructo; squamas acutiu- 

 sculee, utplurimum apicem versus fusciores vel saape atrataä, persistentes; necta- 

 rium in singulo flore unicum et anticum; stamina bina, filamentis liberis. 



a. MICROSTYI^E. 



Capsulse stylo nullo, obsoleto vel rainimo apiculataä, saspissime longe et gracillime pedicellatse. 



Stirps VIII. Salices longifoliae. 



FormoB Americam septentrionalem inhabitantes. — Frutices effusi ramis vimineis vir- 

 gatis. Folia linearia, ■primaria pinnato-partita, sequentia denticulata. Amenta ramulis folia- 

 tis pedunculata; squama? stramineai, subåeciduai ; capsulce obtusw, saipius breve pedicellatai. 



35. Salix lougifolia Muhl. 



S. araentis in ramulis lateralibus plus minus elongatis foliatis terminalibus, lineari- 

 cylindraceis, primo densifloris demum subrarifloris, obtusis; squamis viridi-flavis, obtusis, 

 subdenticulatis; staminibus saturate flavis; capsulis ovato-conicis, obtusis, breve pedicella- 

 tis, pedicello nectarium productum emarginatum v. bifidum utplurimum aequante, stylo 

 nullo, stigmatibus glandula? quadripartitse instar sessilibus; foliis linearibus, longe acumi- 

 natis, margine mucronato-dentatis, utrinque viridibus glabratis vel sericeis, breviter petio- 

 latis; stipulis parvis, lanceolatis, denticulatis. 



Syn. Salix longifolia Muhlenb. Neue Berlin. Schr. IV. p. 238 t. 6. f. 6. — Willd. sp. pl. IV, p, 670. — Psh. fl. bor.-amer. II. 

 p. 613. — Nutt. Genera p. 231. — Hook. fl. boreal.-amer. II. p. 148. — Toeeey Fl. NewYork. II. p. 210. — Asa Geay 

 Manual ed. 2. p. 417. — Ands. Sal. bor. Amer. 1. c. p. 116. 



— S. jluviatilis Nutt. Sylva p. 89. 



— S. amligua Psh. 1. c. 617. 



— S. rubra Echds. append. p. 37. 



Exsicc. Bakkatt Sal. amer. n. 23 (sec. Hook. 1. c). 



Hab. in ripis fluviorum per Americam totam borealem quum occidentalem (in California, 

 Oregon etc.) et centralem (Rocky mountains, ad Mississippi et ämnes adfluentes) tum 

 orientalem, et septentrionem versus usque ad Saskatchavan (Bourgeau). In Texas 

 (Berlandier n. 3019, 2308) et Mexico nova (Fendler n. 813, 814, Wright n. 667, 

 668, 1874, 1875, 1824). — In herbariis plerisque et vivam in California v. 



Frutex diffusus, vulgo 4-pedalis ssepe autem altitudinem 12 ped. attingens, subvimineus, in locis 

 arenosis riparum trunco et ramis interdum prostratis lateque radicantibus. Rami cortice rufescente vel 

 testaceo glabro, ramuli annotini puberulo obducti. Folia in surculis erectis 3 — 4 poll. longa, in ramis 

 fertilibus subbreviora, \ — \ poll. lata, basi attenuata, apice longe acuminata, interdum obliqua, margine 

 dentibus acutis productis pellucidis glandula obscura terminatis remote serrulata, initio pilis canis adpres- 

 sis utrinque pubescentia, demum glabrata, costa et nervis elevatis subtus fulvis utrinque lineata; folia 



