210 PITTONIA. 
By a similar investigation of Pallas’ work, in the light of 
Necker's reference to it, and his definition of Spiesia, we be- 
come assured that this genus was made up of Pallas' Phaca 
microphylla, lanata, oxyphylla, prostrata, muricata, and myrio- 
phylla. De Candolle, it is true, ineludes them all in Ory- 
tropis, as having the habit of the genus, and one of the 
characters ; but he places them last in the series, on account 
of their one-celled pods; the typical group, embracing by 
far the greater proportion of the species, having their pods 
two-celled, and constituting, as I have said, Necker's ARA- 
GALLUS. 
Necker’s delimitation of these genera was done in full ac- 
cordance with the principles of Linnsus, who held Astra- 
galus and Phaca as distinct on the characters, respectively, of 
bilocular and unilocular legumes. If Astragalus and Phaca 
are distinct, so are Aragallus and Spiesia. This whole ques- 
tion seems to have been opened anew in the Illustrated Flora 
of Britton and Brown. Iam in so far favorably disposed 
toward the separation of Phaca and Astragalus as to be un- 
willing to express here the opinion that Spiesia and Aragal- 
_ lus are tobe united. But if they are, ARAGALLUS as having 
the precedence is the name to be maintained. I shall here 
rename only some of the more typical Old and New World 
species. 
* Species of the Old World. 
A. MONTANUs. Astragalus montanus, Linn. Sp. 760 (1753). 
Phaca montana, Crantz, Austr. 422 (1769). Oxytropis mon- 
tana, DC. Astr. 66 (1802). Spiesia montana, O. Ktze. Rev. 
Gen. i. 207 (1891). 
A. URALENSIS. Astragalus Uralensis,Linn.l c. 7601. Oty- 
tropis Uralensis, DC. 1. c. 68. Spiesia Uralensis, O. Ktze. l. c. 
A. GRANDIFLORUS. Astragalus grandiflorus, Pall. Agit. 5T. 
t. 46 (1800). Oxytropis grandiflora, DC. l e. 71. Spiesia 
grandiflora, O. Ktze. 1. c. 206. 
