DIOECIA DIAXDRl'A 550 



#!er,i\ 10- or 3 (eel high, slender, often deccmbent, much branched, w itb a dine/ 

 lark-green, or sometimes yellowish, bark,— the young blanches clothed with a 

 fine short cinereous pubescence ; buds pubescent, the terminal ones often enlar- 

 ged into truncated cones,— or more frequently the cones are inverted, or turbinate. 

 leaves 1 to 2 inches long, and 1 sixth to half an inch *Mc, acute at each end, 

 Broadest near the apex, and cuneately tapering to the base; petioles very short 

 scarcely a line in length), pubescent; stipules none ? or, if any, very caducous. 

 A'nents preceding the leaves, the pistillate ones half an inch tod quarters in length ; 

 &ale* obovate, silky-pilose, blackish at apex ; ovaries slender, acuminatcly taper- 

 ing to the apex, and terminating in a distinct style, densely cinereous-pubescent, 

 on pedicels nearly twice as long as the scales; capsules with a long acuminatum. 

 diverging, pubescent, finally tawny. 



Hub. 3Iica-slate hills; woodlands, and thickets': frequent. Fl April. Fr. Mar. 

 Obs. This is the S. longirostris, of Muhlenberg 3 * Herbarium, and probably of 

 Michaux. It is the moat humble and dwarfish of any of our Chester County Wil- 

 lows ; and although I confounded it with the preceding, in my Catalogue, I now 

 think it quite distinct. Mr. Nuttall avers that it is closely allied to S. repens, and 

 S. rosmarinifolia— and I incline to the opinion, myself, that it may be the s! rw- 

 ntaritiifulia, of Pursh, Ell. &c. but it does not quite agree with my European 

 ijKjcimcns of that plant. 



4. S. discolor? JVilld. Leaves lance-oblong, or elliptic-lanceolate, 

 acute at each end, remotely and obsoletely undulate-serrate, smoothish, 

 glaucous beneath; stipules lanceolate, subdentate, decidous; youn* 

 branches slightly pubescent ; aments sub-corctaneous ; ovarits siAsessilrv 

 (omentose. Beck, Bot. p. 320. 

 Ms* ? S. prinoides. Pursh, Torr. Beck, &c. 



TWO-COLOIIKD S.ILIX. 



&t»t6to 10 feet high, with a yellowish-bnwnbark, branched, branches Tireat*- 

 iliihtly pubescent when young. Leaves 3 or 4 inches long, and 3 fourths of an 

 inch to an inch wide, oblonglanceolatc, sometimes rather oblanceolate, acute, #r 

 eubacuminate, smooth and yellowish-green above, glaucous beneath, veined, and 

 clothed, when young, with a short whitish deciduous pubescence, finally smooth ; 

 petioles 2 to 1 lines long, pubescent when young, finally smooth ; stipules lance' 

 elate, denticulate, or entire, shorter than the petioles. 



JIab. Low grounds; North of WestChester: not common. Fl. April. f>. 



Obs. Mr. Nuttall called this S. discolor ; but the leaves are not quite so serrate 

 as those of the specimen so named \n Muhlenberg's Herbarium. They have some 

 resemblance inform arid size to those of No. 2 ; but in other respects the plant is 

 quito different. I have not yet seen it in flower, nor fruit. It was collected l* F) 

 Tow.n6b.nd, Esq. in 1830. J 



f f f Leaves closely and acutely serrate. 



5. S. !i igra, Marsh. Leaves lanceolate, acute at each end, serrulate, 

 smoothish and green on both sides, the petiole, and midrib above 

 tomentose; stipules small, obliquely ovate, caducous; aments corne- 

 ous, villose; scales oblong; filaments 3 to 6, bearded at base; ovaries 

 smooth, pedicellate ; style short. Beck, Bot. p. 320. (Not of Fl$ntl 

 leetr.) Icox, Jfx. f. Sylva, 3. tad. 126. fig. I. 

 S. caroliniana. J\fx. dm. 2. p. 226. 

 Uiack Salix. 



