CATALOGUE OF SPECIES. 119 



COMPOSITE. 



Hofmeisteria pluriseta Gray, Pac. R. Eep. iv. 96 (1857). Typo locality, "in a 

 canon at Bill Williams' fork, now called Williams' river," Arizona. 



This was found in a canon of the Funeral Mountains, opposite Bennett Wells (No. 

 207); in the south end of the same range, within a few miles of Saratoga Springs 

 (No. 256), and in a canon west of Amargosa; in the mountains east of Resting 

 Springs; at Devil Hole, Ash Meadows; in the Vegas Wash; and in Johnson and 

 Surprise canons, Panamint Mountains. The plant grew always at the hase of a 

 rocky cliff or in its crevices, and within the limits of the Lower Sonoran zone. 



Coleosanthus atractyloides (Gray) Proc. Amer. Acad. viii. 290 (1873), under 

 Brickellia; Kuutze, Rev. Gen. PI. i. 328 (1891). Typo locality, "Utah, near the Rio 

 Colorado." 



On the rocks ahout the upper water-hole at Lone Willow Springs (No. 163) ; on 

 the eastern slope of Lone Willow Peak (No. 186) ; in the mountains east of Resting 

 Springs; in the Funeral Mountains, at a point west of Amargosa; on the rocks 

 about Devil Hole, Ash Meadows; in Johnson, Willow Creek, and Suprise canons, 

 Panamint Mountains; and at the western foot of the Inyo Mountains, near Swansea. 

 The species never grows on the open mesa, but in the clefts of rocks, confining 

 itself to the Lower Sonoran zone. It is a frequent and characteristic plant of 

 such situations. 



Coleosanthus desertorum Coville, Proc. Biol. Soc. Wash. vii. 68 (1892), under 

 Brickellia. Type locality as given below. 



" Shrubby, about lni. high ; branches minutely white-tomentose, becoming glabrous 

 in the second or third year, but still with a white epidermis, afterward gray; leaves 

 alternate, minutely einereous-tomentose; petioles 2 to 5 mm. long; blades deltoid 

 ovate, truncate at the base, crenate-dentate, commonly 3 to 8 mm. long, on vigorous 

 shoots reaching 16 mm. in length; heads in glomerules of 2 to 4 flowers, on short 

 leafv branches from a main axis, or in the second or third year the branches elon- 

 gated and divaricate and bearing a single terminal glomeruli-; involucre 7 to 8 mm. 

 high, about 10- to 12-flowered; bracts 3-nerved, with traces of minute tomentum, 

 1 mm. or less wide, bluntly acute, the outermost oblong-lanceolate, all widely re- 

 curved after the maturing of the achenia; achenia 2 mm. long, sparingly short- 

 hispid; pappus scabrous. 



"This plant differs from B. californica in its more shrubby branches, whiter stems, 

 much smaller canesceut leaves, and heads smaller throughout. In B. californica the 

 involucres are commonly 10 to 12 mm. long and the bracts obtuse, while the achenia 

 are 3 mm. long. 



"Type specimen in the United States National Herbarium; collected November 7, 

 1889, betweun Banning and Seven Palms, on the Southern Pacific Railroad, Cali- 

 fornia, by C. R. Orcutt. 



"The type specimen of B. californica was collected by Douglas probably near San 

 Francisco or Monterey. That species is known in the coast region of California 

 from Mendocino County as far south at least as San Diego. Specimens from Utah 

 and Arizona have been referred to B. californica, but only with doubt. Thenew species 

 is known only from the Colorado and Mohave Desert regions. It shows close rela- 

 tionship, too, with the type form of B. reniformis, but differs from it, as from B. cal- 

 ifornica, in canescence and size of leaves, heads, and achenia." 



The plant occurred at the upper water-hole at Lone Willow Spring (No. 164), in the 

 Funeral Mountains at a point west of Amargosa, and again between Furnace Creek 

 Ranch and Ash Meadows. All its stations were in canons, and within the Larrea 

 belt. 



