STANDLEY TREES AND SHRUBS OF MEXICO 1479 



A decoction of the plant is employed locally as a remedy for dyspepsia and 

 other affections of the stomach, as a stimulant, and also in the form of fomen- 

 tations as a remedy for rheumatism. 



23a. Coleosanthus veronicaefolius senilis (Robinson) Blake. 



Brickellia veronicaefolia setiilis Robinson, Mem. Gray Herb. 1: 72. 1917. 



Puebla; type from hills above Chalchicomula. 



Leaves densely griseous-tomentulose. 

 23b. Coleosanthus veronicaefolius petrophilus (Robinson) Blake. 



Brickellia petrophila Robinson, Proc. Amer. Acad. 36: 486. 1901. 



Brickellia veronicaefolia petrophila Robinson, Mem. Gray Herb. 1: 72. 1917. 



Sonora to Puebla and Guanajuato; type from City of Chihuahua. 



Similar to C. veronicaefolius; pubescence of longer looser septate hairs, mixed 

 with glands; heads 25 to 35-flowered. 

 23c. Coleosanthus veronicaefolius umbratilis (Robinson) Blake. 



Brickellia petrophila umbratilis Robinson, Proc. Amer. Acad. 36: 487. 1901. 



Brickellia veronicaefolia uvihratilis Robinson, Mem. Gray Herb. 1: 73. 1917. 



Coahuila and Durango; type from Parras, Coahuila. 



Similar to the last; heads larger, usually 40 to 60-fiowered; inflorescence loose, 

 the heads pedicellate. 



24. Coleosanthus palmeri (A. Gray) Kuntze, Rev. Gen. PI. 1: 328. 1891. 

 Brickellia palmeri A. Gray, Proc. Amer. Acad. 15: 30. 1879. 



San Luis Potosi. 



Suflfruticose, 50 cm. high, densely glandular-puberulous, scabridulous; leaves 

 alternate, the blades ovate, 1.8 to 3.3 cm. long, 1.2 to 3 cm. wide, coriaceous, 

 serrate, reticulate; petioles 3 to 6 mm. long; heads about 19-flowered, slender- 

 pediceled, loosely racemose-paniculate; phyllaries acuminate, stipitate-glandular. 

 24a. Coleosanthus palmeri amphothrix (Robinson) Blake. 



Brickellia palmeri amphothrix Robinson, Mem. Gray Herb. 1: 74./. 51, 0. 1917. 



Coahuila or Nuevo Le6n to Zacatecas and Aguascalientes; type from Zacatecas. 



Leaves often triangular-ovate, larger; stem and under leaf surface tomentulose 

 or hispidulous as well as glandular. 



25. Coleosanthus glonieratus (Feriaald) Blake. 



Brickellia glomerata Fernald, Proc. Amer. Acad. 36: 504. 1901. 



Guerrero and Morelos to Oaxaca; type from Acapulco, Guerrero. 



Frutescent, 1 meter high, scabrous-hispidulous; leaf blades oblong-ovate to 

 ovate, 2 to 6.5 cm. long, 1.5 to 4 cm, wide, thick, finely reticulate- venose, crenate- 

 serrate, griseous-puberulous and glandular; heads 12 mm. high, about 11-flowered; 

 phyllaries arachnoid-ciliate, strongly graduated. 



26. Coleosanthus hebecarpus (DC.) Kuntze, Rev. Gen. PI. 1: 328. 1891. 

 Bulbostylis hebecarpa DC. Prodr. 5: 138. 1836. 



Brickellia hebecarpa A. Gray, PI. Wright. 1: 85. 1852. 



Brickellia colimae Rose, Contr. U. S. Nat. Herb. 1: 333. 1895. 



Tepic to Jalisco and Morelos. 



Suffruticose, puberulous; leaf blades ovate, 2 to 3 cm. long, 1 to 2 cm. wide, 

 coriaceous, crenate-serrate, reticulate, griseous-tomentellous; heads pedicellate, 

 loosely and dichotomously arranged, the pedicels glandular-puberulous. 



27. Coleosanthus nelsonii (Robinson) Blake. 



Brickellia nelsonii Robinson, Mem. Gray Herb. 1: 79. /. 56. 1917. 



Nuevo Le6n and Tamaulipas; type from Jaumave, Tamaulipas. 



Herbaceous or suffrutescent below, about 1 meter high, loosely griseous-pubes- 

 cent; leaf blades ovate or rhombic-ovate, 3 to 6 cm. long, 1.5 to 4 cm. wide, 

 crenate, rather thin, griseous-pilosulous and gland-dotted; heads mostly pedicel- 

 late, in a leafy panicle, about 1 1-fiowercd. 



