CONTRIBUTIONS FROM THE GRAY HERBARIUM OF HARVARD 
UNIVERSITY. — NEW SERIES, No. .LIX 
I. NOTES ON CERTAIN LEGUMINOSAE 
By J. Francis MAcBRIDE 
In the course of ordering up portions of the Leguminosae at the 
Gray Herbarium it has become necessary from time to time to 
make new names and new combinations of names in order to have 
the work conform to the International Rules of Botanical Nomen- 
clature. These matters are placed on record in this paper. 
Inca verA Willd., var. lamprophylla (Pittier), comb. nov. 
Inga vera Willd. subsp. lamprophylla Pittier, Contrib. U.S. Nat. 
Herb. xviii. 216 (191 6). 
INGA vERA Willd., var. portoricensis (Pittier), comb. nov. 
Inga vera Willd. subsp. portoricensis Pittier, Contrib. U.S. Nat. 
Herb. xviii. 217 (1916). 
A few American botanists regard the terms “ subspecies ” and 
“ variety ’’ as synonymous and therefore interchangeable. Such 
an attitude must lead only to confusion because so many workers, 
especially European, in dealing with American plants, have used 
these categories (variety and subspecies) in quite different sense, 
the latter term invariably being applied to a rank just above the 
former, which of course is the interpretation placed upon these 
terms by the International Rules, Art. 12 and Art. 28. In ac- 
cordance with this well established practice the plants cited above 
are better considered varieties, it seems to me, than subspecies, 
since, as Pittier has shown, they differ from the typical form only 
in matters of pubescence and even at times intergrade. 
Enterolobium gummiferum (Mart.), comb. nov. Pithecollo- 
bium gummiferum Mart. Herb. Fl. Bras. 116 (1837). £. ellipti- 
cum Benth. in Hook. Lond. Journ. iii. 224 (1844). 
Bentham, Trans. Linn. Soc. xxx. 598 (1875), referred Martius’s 
plant to his E. ellipticum without doubt. The genus Enterolo- 
bium differs from Pithecolobiwm only in the character of the fruit 
as Bentham has pointed out, but this must suffice because many 
of the genera in the Mimoseae rest largely if not entirely upon 
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