OF THE GENUS ARENARIA. 893 
93. A. Hooxert, Nutt. in Torr. & Gray, Fl. N. Amer. i. p. 178 
(1838) ; Robinson in Proc. Amer. Acad. xxix. p. 297 (1894). 
This species, with much the habit of the preceding, differs in its 
much denser caudex and constantly pubescent stem. The stem 
is terete even in a dried state, while the stems of 4. Franklinii 
in drying become furrowed and angulate, as though slightly 
fleshy. The slightly exserted petals are also characteristic. It 
can scarcely be considered a variety of the preceding. 
Hab. United States: Colorado, Wyoming, Nebraska, and 
Montana. 
94. A. PoLYCNEMIFOLIA, Boiss. Diagn. Pl. Or. nov. Ser. L. 
i. p. 48 (1842) ; FI. Orient. i. p. 692. 
Glauca. Folia turionum brevia stricta setacea mucronata. Capi- 
tulum pauciflorum (floribus 3-6), bracteis involucratum; bractew 
Imeari-lanceolate acuminate viridi-carinate. Sepala oblongo- 
lanceolata acuta late membranaceo-marginata carinata, nervo ad 
apicem usque producto. Petala alba oblongo-linearia, basi vix 
attenuata, calyce sublongiora. 
The bracts do not seem to be “abbreviate,” as in Boissier’s 
description. But the description may be based on Aucher-Eloy’s 
specimens numbered 4255, in which the heads of flowers are very 
much crushed and mutilated, and in which it is not possible to 
ascertain the length of the bracts. Sintenis’s specimens, deter- 
mined by Prof. C. Haussknecht, show the structure of the 
fascicles of flowers very clearly, and from these specimens the 
description has been revised. l 
Geogr. limits.—N. & W. Turkish Armenia: Ketsetvikale, 
near Gumuchkhane, in prov. of Trebizond (Sintenis, 
It. Orientale, 1894, no 6111). 
S. 4 E. N. Persia: Mt. Demawend, in the Elburz Moun- 
tains. 
B. Flores pedicellati, in eymas simplices aut compositas interdum 
depauperatas vel per thyrsum brachiatum panicula- vel 
corymbiformem dispositi, pedicellis calyei æquilongis vel 
longioribus suffulti. 
a. Petala sepalis breviora. 
95. A. puNGENS, Clem. in Lag. Gen. et Spec. Nov. p. 15, no, 
199 (1816) ; Willk. § Lange, Prodr. Fl. Hisp. iii. p. 625. 
