of the Genus Aloe. 19 
A. perfoliata glauca. Ait. Kew. 1. 466. (excluso 
synonymo Milleri.) 
A. africana foliis glaucis margine et dorsi parte 
superiore spinosis. Hort. Amst. 2. f. 12. Comm. 
Prcel. 75./. 24. 
* 13. foliis coerulescenti-glaucis subtus versus api- 
cem subtuberculatis : spinis junioribus virescen- 
tibus respicientibus. 
barbadensis. Aloe foliis ensiformibus sinuato-serratis, corollis 
40 luteis. 
A. barbadensis. Mill. Die. No. 2. 
A. perfoliata barbadensis. Ait. Kew. 1. 466. 
A. vulgaris. Plantes Grasses, p. 27- cum icone. 
A, vera vulgaris. Munting. Aloidar. cum icone. 
Obs. This species and striata are the softest- 
leaved and most succulent of all the Aloes : the 
former is the only species whose flowers are yel- 
low. In the course of my studying this genus, 
I have found the structure and colour of the 
flowers, and the position and colour of the leaves, 
tubercles, and spines, of more consequence, as 
specific criteria, than the shapes of those leaves, 
arms, or flowers, 
-k +• DicJwtomcej propaginibus caulinis, caule senedo percrasso dichotomo. 
soccotrina. Aloe foliis ensiformibus virescentibus : apicibus 
41 subincurvatis ; scrraturis marginaJibus parvis al- 
bis numcTosis. 
A. perfoliata vera. Willd. Sp. PI. 2. 186. 
A. perfoliata soccotrina. Ait. Kew. 1. 466. Curt. 
Bot. Mag.f.47'2- 
d 2 A. vera. 
