269 
This species, which was included in the earlier editions of 
Gray’s Manual, but omitted in the 6th edition, is represented in 
the Kew Herbarium by abundant specimens collected by Drum- 
mond years ago at Philadelphia, and in the Torrey Herbarium 
by specimens from Baltimore. It does not appear to have been 
recently found in the United States. 
Rhus typhina, L. Ameen. Acad. iv. 311 (1760). 
 Datisca hirta, L. wo ©. £037 :(175 3). 
The type of Datisca hirta preserved in the Linnzan Herba- 
rium is a specimen of the Stag-horn Sumach in the condition of 
the inflorescence reverting to leaves, a phenomenon which fre- 
quently occurs in this and related species. Linnzus had the 
plant from Kalm, and it was collected at Philadelphia. Although 
hirta is thus the oldest specific name associated with the plant, 
we are, I think, debarred from using it by the publication of 
Rhus hirta, Harv., as a synonym by Engler in DC. Monog. 
Phan. iv. 425 (1883), where this is referred to R. tridentata, 
Sond. 
_ KRAuNHIA, Raf. Med. Rep. (II) v. 352 (1808) ; Steud. Nom. 
Ed. 2, i. 850. 
Diplonyx, Raf. Fl. Ludov. tor (1817). 
Thyrsanthus, Ell. Journ. Acad. Phila. i. 371 (1817). 
Wisteria, Nutt. Gen. ii. 115 (1818). 
Rafinesque cites Glycine frutescens, L., as an equivalent for 
his proposed genus Krawzhia, so there is no question of the plant 
intended. 
CRUMINIUM, Desv. Ann. Sci. Nat. (I) ix. 423 (1826). 
Centrosema, Benth. Ann. Mus. Wien. ii. 117 (1840). 
Clitoria § Centrosema, DC. Prodr. ii. 234 (1825). 
The genus is founded on the plant commonly known as Cen- 
trosema Plumierit, Benth. (Cruminium giganteum, Desv.). 
The North American species is CRUMINIUM VIRGINIANUM (L). 
Clitorta Virginiana, L. Sp. Pl. 753 (1753). Centrosema Vir- 
giniana, Benth. Ann. Mus. Wein. ii. 120 (1840). 
Gleilitschia aquatica, Marsh Arb. Amer. 54 (1785). 
This, I believe, is the oldest available name for the Water 
Locust of the Southern States. To be sure, as pointed out by 
