e 
272 The Botanical Gazette. [July, 
Var. Muelleri, n. var. 
Plant more branching: leaves longer, narrower: inflores- 
cence freely branching: sepals spreading, 2™ long, two-thirds 
as long as the broadly ovate inflated coriaceous utricle: seed 
larger.—Collected by Mr. Fred Mueller near Vera Cruz in 
1853. 
It is only for convenience in presentation that these two inseparable 
forms are permitted to fall with the other dicecious species, with 
which their affinities are otherwise very slight. In the utricle char- 
acters they display affinities for the Euxolus group, while in habit they 
are quite anomalous. ore material and added knowledge may lead 
to a very different disposal of them. 
10. A. TORREYI Benth. Wats. Bot. Calif. 2: 42. 1880. 
Western plains from Nebraska to Mexico, extending as far 
west as Nevada. It is the only northern dicecious form, being 
replaced in the south-west by the more abundant 4. Pal- 
Var. suffruticosus, n. var. aes 
Stem woody: leaves narrowly rhombic-ovate, with numer- 
ous prominent nerves on the under surface. Distributed as 
Amblogyne Torreyi.—Lower California, Cape St. Lucas (Xan 
tus 100 of 1859-60). 
11. A. PALMERI Wats. Proc. Amer. Acad. 12: 274. 1877. 
Distinguished by its long terminal spikes and very long 
rigid pungent bracts. —It is found from western Texas, through 
central New Mexico and Arizona to the Pacific Coast, but 
reaches its greatest display in the plateaus of northern Mex- 
ico, where it is one of the commonest of plants in gardens, 
cultivated fields and bottom lands. Very variable. 
Var. glomeratus, n. var. 
Low, decumbent or ascending, branching at base: leave’ 
narrow, very small (not exceeding 1.5™): fertile flowers - 
gregated below in large dense glomerules becoming 3 es 
in diameter at the base of the plant: sepals more spreé wn! 
—Collected in 1889 by Dr. Palmer at Lerdo, Sonora, Mex 
(953 &, 958 4). 
A form from Lower California (Orcutt, 1884) is taller and geo 
and has not the display of pistillate glomerules at base; but n & 
aspect it presents greater affinities here than for the species. 
(To be concluded.) 
Herbarium Lake Forest University, Lake Forest, Il. 
