1919] SCHNEIDER, NOTES ON AMERICAN WILLOWS. V 7 



region in herbaria is very scanty. From the range given in Britton and 

 Brown's Flora or in Small's Flora it would appear that S. nigra w^as dis- 

 tributed along the whole eastern coast including Florida. In his Florida 

 Shrubs 9 (1913), Small distinguishes two species from northern Florida 

 with " leaf-blades green beneath." One he calls S. mgrOy and the other 

 *S. marginata " Weimer " [Wimmer]. The first apparently represents the 

 form I refer to above, while S. marginata seems to me identical with the 

 plant I describe as S. Ilarhisonii. As to the name marginata see later 

 under S. longipes vcnulosa. Harper, in his Geogr. and Veget. of northern 

 Florida (in Sixth Ann. Rep. Florida Geol. Surv. 401 [1914]) says under 



5. nigra " Banks of streams, etc., mostly westward." He probably too 

 includes forms of S. Ilarbisonii wdiich, as I shall explain later, often looks 

 intermediate between S. nigra and forms of S. longipes. I have been able 

 to examine the following specimens of what I believe is a form closely 

 related to typical S. nigra from Virginia to northern Florida. 



Virginia. Alexandria County: Arlington, May 10, 1891, F. Blanchard (fr.; 

 M.; stomata in pagina folioriim superiore pauciora). Dinwiddle County: Peters- 

 burg, banks of the Appomatox River, August 22, 1908, A. Rehder (st.; A.). Glouces- 

 ter County, without exact locality, common, September 14, 1912, C, S. Sargent 

 (st.; A.; very similar to the preceding). Smyth County: about falls of Holston 

 River, June 8, 1892, J. K. Small (fr.; A., M.; stomata in pag. superiore foliorum 



partim non visa). 



Souxn Carolina. Oconee County: Clemson College, April 23, 190C, IL D, 

 House (No. 1910, m., f.; N.; forma satis typica stomatibus paucloribus). Abbeville 

 County : Calhoun Falls, along Savannah River, May 20, 1918, T, G. Harbison (No. 



6, fr.; A.; stomata in fuliis superne non visa). Darlington County : Darlington, in 

 low swampy ground, April 24, 1918, T, G. Harbison (Nos. 19, fr., st, 21, fr., 23, fr.; 

 A.; *'large shrub"; stomata non visa vel tantum pauca secundum costam). 



Georgia. Rabun County: Pine Mountain, along rocky stream in mountain, 

 April IC, 1918, T. G. Harbison (Nos. 1, 2, m.; A.; "small tree"; flowers very young, 

 twigs rather brownish); Clayton, on bank of small stream, April 11, 1918, T. G. 

 Harbison (Nos. 1, 2, m., f.; A.; "small tree with brittle-jointed twigs"; same as pre- 

 ceding). Gwinnett County: Yellow River, May 22, 1897, H. Eggert (fr.; M.; 

 stomata superne sparsa). De Kalb County: on and about Stone Mountain, May 

 1-18, 1895, J. K. Small (m., f.; A., N.; stomata superne nulla vel sparsa). Rich- 

 mond County: near Augusta, October 7, 1914, C. S, Sargent (st.; A.; stomata 

 superne non visa); on bank of river, April G, 1918, T. G. Harbison (No. 6. m.; A.; 

 'Marge tree; bark rough and scaly; twigs brittle-joijited"). Randolph County: 

 Cuthbert. in low ground along a small stream, March 29, 1918, T. G. Harbison (Nos. 

 4, f„ 5, m.; A.; *'a tree GO ft. tall and a foot in rliameter; bark furrowed and scaly 

 in thick plates; twigs brittle-jointed"; stomata superne tantum ad costam sparsa). 



Flouiua. Gadsden County: River Junction, in low ground, March 24, 1918, 

 r. G. Harbison (No. 18, fr. im.; A.; "shrub 8 ft. tall; twigs brittle-jointed^'; this 

 form may be referable to S. Harbisonii); March 24, 1918, T. G. Harbison (No. 2, 

 m.; A.; *'a tree nearly a ft. in diameter and about 50 ft. tall; bark deeply furrowed 

 and scaly"; stomata superne numerosa!). Duval County: Jacksonville, in low 

 inundated swamp, March 19, 1918, T, G. Harbison (No. 2, fr.; A.; "large shrub or 

 low straggling tree"; according to the rather long pedicels of the fruits this form 

 may belong to S. Harbisonii). 



The var. /aZca/a cannot in my opinion even be distinguished as a good 

 form (see Blake's statements in Rhodora, xv. 163 [1903]), and so far as I can 



