698 CALIFORNIA ACADEMY OF SCIENCES. 



No. 5297I. May 26, 1894, Pahria Canon, Utah, 5300° 

 alt., in sand. 



After looking over all the specimens obtainable on these 

 two species, I can only consider A. inferior Coville as a 

 geographical variety of A. linecwifoliiis, as transitions 

 seem to occur at all points. Mrs. Brandegee has already 

 called attention to this as a variety. 



Gymnolomia multiflora var. annua. All the forms 

 of this species growing in our northern mountains are 

 perennial, as described by Nuttall; those growing on the 

 arid plains of the south are annual, and with quite a 

 different habit; the heads are decidedly conical, the 

 plants are more delicate and slender, often only a few 

 inches high. The variety ranges from southeastern Utah 

 to Mexico and westward, but I have never seen it in the 

 Great Basin. 



Tetradymia spinosa var. longispina. 



No. 5 no. April 26, St. George, Utah, in red sand, 

 on the slopes of Triassic rocks, at 3000° alt., growing in 

 tangled clumps about three feet high. Soil a little alka- 

 line. 



Shrub 3—6° high, with rounded top and long, slender, 

 intricately interlaced branches, closely and permanently 

 woolly, branches rather tortuous; primary leaves 6—12" 

 long, linear-spatulate, tomentose, straight or nearly so, 

 horizontal to somewhat deflexed, never hooked, becoming 

 long slender spines, i' long, like those of Ofuntia rittila, 

 but not so long; secondary leaves fleshy, smooth, linear, 

 but a trifle widened above, 6" long; scales 3" long, oblong; 

 heads 4" long, on a peduncle i" long or less; flowers 

 about 6—10 in a head; young branches never elongated. 

 This differs very markedl}^ from the type in the long 

 spines and in its habitat, but there are transitions in the 

 National Herbarium. 



