THE BRITISH WILLOWS 33 



x Salix stipulaeis Sm. Fl. Brit. iii. 1069; Engl. Fl. iv. 230; 

 in Eees Cycl. 136. Wade, 376. Wimmer, Sal. Eur. 181. Syme, 

 E. B. viii. 225. — x stipularis Anderss. DC. Prodr. xvi. (2), 266. 

 B. White, Eevision, 415. Camus, Monogr. 318. 



Icon. E. Bot. t. 1214. Forbes, Sal. Wob. t. 132. 



Exs. Hb. Smith (S. stipularis, osier-ground near Bury). 

 Leefe, Sal. exs. i. 15. Wimmer, Sal. Eelict. (Herb. Sal. 120; 

 Coll. Sal. 169). Hb. B. White, No. 475, for the $ plant, and 

 unnumbered specimens of the $ . E. F. & W. R. Linton, No. 9 

 (1), No. 84. 



A bush with the habit of S. viminalis L., but shorter, with 

 broader leaf-blades and foliaceous stipules. Branches and buds 

 softly woolly-pubescent, becoming reddish-brown by winter. 

 Stipules up to 1 in. in length, longer than the petioles, foliaceous 

 subpetiolate, ^-cordate attenuate to a fine point, serrulate or sub- 

 dentate, glabrescent above, softly woolly-pubescent beneath, not 

 fully developed till August. Leaf-blades 5-7 in. long, narrow 

 lanceolate attenuate, slightly undulate, obscurely crenate-serrate 

 or crenate or subentire, with revolute margins when young, dull 

 green and gradually glabrescent above, whitish-grey with satiny 

 pubescence beneath. Catkins appearing in May before the leaves, 

 erect, subsessile with a few small leaves at the base ; bracts ovate- 

 oblong clothed with dense long silky hairs ; $ nectaries very long ; 

 filaments free, glabrous ; 2 catkins 1-lf in. long ; ovaries ovoid 

 tomentose subsessile ; nectaries long linear ; style moderate, 

 stigmas as long or longer, linear undivided. 



Almost indistinguishable from a broad-leaved form of S. vimi- 

 nalis till the stipules are developed in late summer ; then easily 

 recognized. 



Wimmer suggested S. dasy dados x viminalis as the origin of 

 X S. stipularis ; others have thought that S. cinerea is the other 

 factor, S. viminalis obviously being one parent. This latter 

 view is most likely, being corroborated by the observations of 

 MM. Camus that the striations on the wood beneath the bark that 

 are characteristic of S. cinerea are found in x S. stipularis ; and 

 that its internal morphology does not differ sensibly from that of 

 S. holosericea Willd. (a more intermediate and commonly recog- 

 nized form of S. cinerea x viminalis). 



Its distribution is not well ascertained. Syme (I. c.) calls it 

 rare, recording it from Essex and Suffolk. It is known, however, 

 for Dumfriesshire, Colonsay, and near Helmsdale, Sutherlandshire, 

 and there are several stations in Perthshire. Europe : Germany, 

 Denmark, Transylvania, S. Russia. 



X Salix acuminata Sm. Engl. Fl. 10, 227 ; in Rees Cycl. 129. 

 Syme, E. B. viii. 229. Anderss. DC. Prodr. xvi. (2), 268. B. White, 

 Revision, 420. — S. Calodendron Wimmer, Sal. Eur. 187. — S. dasy- 

 clados Wimmer in Flora, xxxii. 35 (1849). Seemen, iv. 177. — 

 S. caprea acuto long oque folio Raii Syn. ed. 2, 292. 



Icon. E. Bot. t. 1434. Forbes, Sal. Wob. 131. Fl. Dan. 2669. 



Exs. Leefe, Sal. Brit. exs. No. 37 ; Sal. exs. ii. 27. Wimmer, 

 Sal. Relict. (Herb. Sal. 121 ; Coll. Sal. 100). Baenitz, Herb. Europ. 



