STANDLEY TKEES AND SHKUBS OF MEXICO 1481 



33. Coleosanthus orizabaensis (Klatt) Blake. 



Brickellia orizabaensis Klatt, Ann. Naturh. Hofmus. Wien 9: 358. 1894. 



Veracruz, Guerrero, and Oaxaca; type from Orizaba, Veracruz. 



Herbaceous, or lignescent at base, 1.5 to 2.5 meters high, sordid-puberulous; 

 leaf blades ovate, 4 to 7 cm. long, 2.5 to 5.3 cm. wide, crenate-serrate, puberulous 

 chiefly on the veins beneath; heads panicled, nodding, 13 mm. high, about 14- 

 flowered; phyllaries thin, greenish, obtuse, ciliate and sparsely villous. 



34. Coleosanthus pendulus (Schrad.) Kuntze, Rev. Gen. PI. 1: 328. 1891. 

 Eupatorium pendulum Schrad. "Ind. Sem. Hort. Goett. 1830"; Linnaea 6: 



Litt. Ber. 72. 1831. 



Biilbostylis pendula DC. Prodr. 5: 138. 1836. 



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



Morelos and Mexico to Oaxaca; type from Mexico, without definite locality. 



Fruticose, 2 to 3 meters high, griseous-tomentellous and glandular or scabrid; 

 leaf blades 2.5 to 8 cm. long, thin, crenate-serrate to subentire, reticulate, thinly 

 pilosulous to tomentulose beneath; heads 1.4 to 2 cm. high, about 12-flowered, 

 thyrsoid-paniculate, more or less secund, pedicellate; phyllaries stipitate- 

 glandular, appressed or the outermost with slightly loose tips. 

 34a. Coleosanthus pendulus squarrosus (Robins. & Seat.) Blake. 



Brickellia squarrosa Robins. & Seat. Proc. Amer. Acad. 28: 108. 1893. 



Brickellia pendula squarrosa Robinson, Mem. Gray Herb. 1: 87. 1917. 



Known onl}^ from the type locality, near Patzcuaro, Michoacdn. 



Similar; middle and outer phyllaries with subherbaceous squarrose tips. 



35. Coleosanthus seemannii (A. Gray) Blake. 



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



Known only from the tj^pe locality. Sierra Madre of northwestern Mexico. 



Herbaceous or perhaps lignescent at base, scabrid-puberulous; leaf blades 

 3 to 4.5 cm. long, crenate-serrate, reticulate beneath; heads in a short secund 

 raceme, nodding, 18 mm. high, about 15-flowered; phyllaries stramineous, very 

 acute, aristate-mucronate. (Description compiled.) 



36. Coleosanthus saltillensis (Robinson) Blake. 



Brickellia saltillensis Robinson, Proc. Amer. Acad. 43: 37. 1907. 



Known only from the type locality, near Saltillo, Coahuila. 



Herbaceous or suffrutescent (?) at base, scabrid-pubescent; leaf blades 3.5 

 to 6 cm. long, reticulate beneath and scabrid-puberulous chiefly along the veins; 

 heads thyrsoid-panicled, few, nodding, 16 mm. high, 14 to 16-flowered; phyllaries 

 thin, green or purple-tinged, acuminate, sparsely pubescent. 



37. Coleosanthus squarrosus (Cav.) Blake. 

 Eupatorium squarrosum Cav. Icon. PI. 1: 66. pi. 98. 1791. 

 Coleosanthus cavanillesii Cass. Bull. Soc. Philom. 1817: 67. 1817. 

 Rosalesia glandulosa Llave in Llav. & Lex. Nov. Veg. Descr. 1: 14. 1824. 

 Eupatorium rosalesia DC. Prodr. 5: 183. 1836. 



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



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



Brickellia rosalesia Benth. & Hook.; Hemsl. Biol. Centr. Amer. Bot. 2: 106. 

 1881. 



Coleosanthus glandulosus Kuntze, Rev. Gen. PI. 1: 328. 1891. 



Brickellia squarrosa Robinson, Mem. Gray Herb. 1: 90. 1917. Not B. squar- 

 rosa Robins. & Seat. 1893. 



Durango to Michoacdn, Puebla, and Mexico; type from Mexico, without 

 definite locality. 



Frutescent or fruticose, about 3 meters high, sordid-puberulous, suljglabrate; 

 leaf blades triangular-ovate to broadly ovate, 3.5 to 9 cm. long, thin, crenate- 

 serrate, reticulate beneath and puberulous or usually griseous-tomentulose; 



