WOOTON AND STANDLEY FLOEA OF NEW MEXICO. 719 



93. LAPHAMIA A. Gray. 



Low monocephalous perennial with alternate, petiolate, dentate, broadly ovate 

 leaves; bracts of the hemispheric involucre distinct, imbricated, oblong; rays none; 

 margin of achenes naked or sparingly ciliate; pappus of about 20 bristles. 



1. Laphamia cemua Greene, Bull. Torrey Club 25: 122. 1898. 



Type locality: Organ Mountains, New Mexico. Type collected by Wooton 

 (no. 476). 



Range : Known only from the type locality. 



94. PERICOME A. Gray. 



Tall, much branched perennial herb with bright green opposite long-petiolate 

 triangular-hastate leaves and numerous small heads of yellow flowers in terminal 

 corymbiform cymes; involucre a single series of numerous narrow bracts lightly con- 

 nate by their edges into a cup; achenes villous-ciliate; pappus a lacerate-ciliate 

 crown with sometimes a pair of short awns. 



1. Peiicome caudata A. Gray, PI. Wright. 2: 82. 1853. 



Type locality: Sides of the mountains at the Copper Mines, New Mexico. Type 

 collected by Wright (no. 1195). 



Range: Southern Colorado to New Mexico and Arizona. 



New Mexico: Rito de los Frijoles; Sierra Grande; Las Vegas Hot Springs; Clayton; 

 mountains west of Grants Station; Puertecito; Canada Alamosa; Santa Rita; Mogollon 

 Mountains; Hillsboro Peak; Organ Mountains; South Bonito Creek; Gray. Canyons 

 and rocky hills, in the Upper Sonoran and lower part of the Transition zones. 



95. PERITYLE Benth. 



Low slender perennial, woody at the base, with pedately or pinnately parted leaves, 

 the lowest ones opposite, the upper alternate; heads small, pedunculate, the disk 

 flowers yellow, the rays white; bracts of the involucre distinct, somewhat imbricated; 

 achenes narrowly oblong, glabrate on the faces, densely hirsute, ciliate, the pappus of 

 2 awns. 



1. Perityle coronopifolia A. Gray, PI. Wright. 2: 82. 1853. 



Type locality: Sides of the mountains at the Copper Mines, New Mexico. Type 

 collected by Wright (no. 1196). 



Range: Southern New Mexico and Arizona. 



New Mexico: Mogollon Mountains; Organ Mountains. In crevices of rocks, in the 

 Upper Sonoran Zone. 



96. CLAPPIA A. Gray. 



Low shrub with alternate fleshy terete leaves, these entire or the lower 3 to 5-parted; 

 heads pedunculate, terminating the branches; involucre hemispheric, of few o\al 

 obtuse striate bracts imbricated in 2 or 3 series; rays 12 to 15, linear; achenes oblong- 

 turbinate, terete, 8 to 10-nerved, hirtellous on the nerves; pappus of 20 to 25 rigid 

 scabrous distinct bristles. 



1. Clappia suaedifolia A. Gmy in Torr. U. S. & Mex. Bound. Bot. 93. 1859. 

 Type locality: Laredo, Texas. 

 Range: Western Texas to southeastern New Mexico. 

 New Mexico: White Sands; Roswell. Alkaline flats, in the Lower Sonoran Zone. 



97. GAILLARDIA Foug. Blanket flower. 



Branched annual or perennial herbs with alternate, entire or pinnatifid leaves and 

 long-pedunculate heads; involucre depressed-hemispheric, the linear or lanceolate 

 bracts imbricated in 2 or 3 series; receptacle convex or globose, fimbrillate; rays cune- 

 ate, yellow or party-colored, ntutral: achenes turbinate, 5-ribbed, villous; pappus 

 of 6 to 12 awned scales. 



