. ,and three-fourths as broad as they are long, aresometimes entire, and at others divided into twoor three lobes, rounded, cordiform, denticulated,of a dark glossy-green colour, with a thicktexture, and a rough, uneven surface. Thesexes are usually separate, though they aresometimes found on the same trees, which, it iseven stated, vary in their sexes every year. The male flowers, which put forthin Pennsylvania in May, form pendulous, cylindrical aments. about an inch inlength; but those of the opposite sex are small, and scarcely
. ,and three-fourths as broad as they are long, aresometimes entire, and at others divided into twoor three lobes, rounded, cordiform, denticulated,of a dark glossy-green colour, with a thicktexture, and a rough, uneven surface. Thesexes are usually separate, though they aresometimes found on the same trees, which, it iseven stated, vary in their sexes every year. The male flowers, which put forthin Pennsylvania in May, form pendulous, cylindrical aments. about an inch inlength; but those of the opposite sex are small, and scarcely apparent. Thefruit, which is generally of a deep-red colour, is of an oblong form, an agreeable,acidulous, sugary taste, and is composed by the union of a great number ofsmall utriculi, each of which contains a minute seed. Varieties. The Morus rubra appears to have the same tendency to sport, andform new varieties or races, as its eastern congeners, the white, and black-fruitedspecies. The following variations we insert principally on the authority of Raf-58. 458 MORUS RUBRA. inesqvie, which are generally treated by him as species; but, from observations ofour own, as well as the opinion of others, we regard them only as varieties:— 1. M, R. PALLIDA. Pale-fruited Red-fruited Mulberry; with fruit of a pale-redcolour. 2. M. R. HETEROPHYLLA. Various-leaved fted-fruited Mulberry; with all theleaves nnlike. 3. M. R. RiPARiA. River-bank-inhahiting Red-fruited Mulberry; Water Mul-herry^ Wild Black Mulberry, of the Pennsylvanians. This variety differs fromthe species in having longer petioles, ovate, deeply cordate leaves, which arcseldom laterally lobed, quite smooth, and thin, crenate, serrate, acute, but neitheracuminate nor oblique at the base. It forms a handsome tree, growing on thebanks of the Snsquehaunah, in the Alleghany Mountains. The leaves are fromthree to five inches long; and the frnit is of a dark-red. 4. M. R. CANADENSIS. Canadian Red-fruited Mulbenij; called Rock M
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