855 
173. B. flexuosa, near Petersburg, Va., T. P. James, April, 1867. 
176. B. flexuosa var. nigricans? Moyamensing, Philadelphia, 
Pa., T. P. James, May 30th, 1866. | 
32. B. flexuosa var. nigricans. “Spores the same as in the 
type.” Without locality or date, presumably No. 42, S. & L. 
Musci bor. Am. from Raccoon Mt., Alabama. 
There are also three other small packets without locality, date 
or collector. 
Two drawings also are preserved, one of which I cannot satis- 
factorily match to the specimens. It is labelled “Bruchia flexuosa, 
Hab. Ohio and Southern States, W.S. S., July, 1850,” and may 
have been drawn from one or more specimens. ; 
The other drawing is labelled “ Bruchia flexuosa var.? Cleveland, 
Ohio, June, 18 56—Dr. Cassell’s,” the specimens of which are pre- 
Served as shown above. These are the ones referred to the variety 
nigricans, in the Mosses of the United States, page 17 (1856), 
though later in the Icones (1864) he used the drawings made from 
them to illustrate what he considered the type of the species, 
though it must be borne in mind that.the specimens in Schwe- 
grichen’s Herbarium, and not Sullivant’s, are the types. 
These specimens of Dr. Cassell’s, when placed side by side 
under the same cover with the type, show the leaves to be some- 
what shorter and broader, /ess rough, the seta also shorter, but the 
capsule longer and narrower, with a longer beak, and the spores 
the same in size and roughness. In the original drawing, but 
Omitted from the Icones, the antheridia are indicated in Figs. 2-3 
as naked, in the axils of the leaves below the perichetium, as in 
Fig. 13. Fig. 4 was added to the Icones, and does not occur in 
the original drawing. Sullivant has written on the back of the 
drawing: «I am unable to find any tangible characters to separate 
_ these specimens (Cleveland, Dr. Cassell’s) from Bruchia flexuosa. 
€se specimens are not as slender as usual in B. flexuosa, more 
“ondensed, pedicel shorter and leaves shorter, etc. The spores 
°3-.0325-.035 mm. The spores of B. flexuosa are the same.” 
_ This raises the question as to what specimens Sullivant con-. 
Sidered typical; as far as we can learn from his herbarium he had 
Not seen the type specimens. Presumably these would be the 
_ Specimens which he distributed in 1865 as Number 41 of S. & L. 
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