1506 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 



22. Baccharis thesioides H. B. K. Nov. Gen. & Sp. 4: 61. 1820. 

 Baccharis ptarrnicaefolia DC. Prodr. 5: 419. 1836. 



Baccharis sulcata DC. Prodr. 5: 419. 1836. 



Sonora to Jalisco and Mexico; type from Santa Rosa (Guanajuato?). Arizona 

 and New Mexico. 



Shrubby, scarcely glutinous, 2 meters high or less; leaves linear to narrowly 

 oblanceolate, 2 to 8.5 cm. long, 1.5 to 8 mm. wide, usually acute, closely sharp- 

 serrulate, l-nerved or weaklj' triplinerved; heads 4 to 6 mm. high, numerous in 

 rounded panicles; achenes 5-nerved, glabrous or glandular; pappus about 3.5 mm. 

 long. 



23. Baccharis sordescens DC. Prodr. 5: 405. 1836. 



San Luis Potosi to Oaxaea; type from Mexico, without definite locality. 



Shrub, up to 3 meters high, densely sordid-tomentulose or puberulous; leaves 

 oblong, elliptic-oblong, or elliptic, 1.5 to 5.5 cm. long, 5 to 18 mm. wide, closely 

 sharp-serrulate, triplinerved, usually obtuse; panicles rounded, many-headed; 

 involucre 4 to 7 mm. high, strongly graduate, the obtuse green-centered phyllaries 

 densely arachnoid-pilose-ciliate, more or less glandular and tomentulose; achenes 

 5-nerved, subailabrous; pappus whitish, 6 mm. long. 



24. Baccharis multiaora H. B. K. Nov. Gen. & Sp. 4: 59. 1820. 



State of Mexico to Chiapas; type from Tianguillo and Toluca, State of Mexico. 



Shrub, up to 3 meters high, rufescent or sordid-tomentulose at least on the 

 younger parts; leaves elliptic to obovate, 2 to 9 cm. long, 0.8 to 3 cm. wide, closely 

 sharp-serrulate, scarcely triplinerved; panicles rounded; achenes and pappus as 

 in B. sordesce7is. "Hierba del carbonero," "hierbabuena del carbonero," "esco- 

 billa," "tepopote," "tepopotl," ''limpia-tuna" (Valley of Mexico). 



An infusion of the leaves is much used in the Vallej^ of Mexico as a remedy for 

 nasal catarrh. 



25. Baccharis serraefolia DC. Prodr. 5: 403. 1836. 



'? Baccharis parviflora Less, in Schlecht. & Cham. Linnaea 5: 146. 1830. 



Durango to Veracruz; type from Santa Rosa and Los loares, Guanajuato. 

 Guatemala. 



Similar to B. niultiflora; heads smaller; phyllaries obscurely ciliate; pappus 

 4 mm. long. 



26. Baccharis glutinosa Pers. Syn. PL 2: 425. 1807. 



Molina viscosa Ruiz & Pav. Syst. Veg. Peruv. Chil. 207. 1798. Not Baccharis 

 viscosa Lam. 1783. 



Baccharis farinosa Spreng. in Ersch & Gruber, Allg. Encycl. 7: 27. 1821. 



Baccharis coerulescens DC. Prodr. 5: 402. 1836. 



Baccharis alamani DC. Prodr. 5: 402. 1836. 



Baccharis longifolia DC. Prodr. 5: 402. 1836. 



Sonora to Tamaulipas, south to Oaxaea; Baja California. California to Colo- 

 rado and Texas; central and western South America; type from South America. 



Woody below, glutinous, up to 4 meters high, very leafy; leaves linear to lance- 

 olate, 5 to 12 cm. long, 4 to 18 mm. wide, acuminate at each end, usually remotely 

 but regularly serrate or serratulate, sometimes entire, somewhat triplinerved; 

 panicles terminal, rounded, many-headed; involucre stramineous, 3 to 5 mm. 

 high; achenes 5-angled; pappus whitish, about 4 mm. long. "Jarilla" (Sinaloa, 

 Chihuahua); "jara"' (Guanajuato, Texas); "hierba del carbonero" (Valley of 

 Mexico); "jaral" (Tamaulipas, Guanajuato); "jarilla comiin," "jarilla del rio" 

 (Durango); "jara dulce" (Texas); "chilca," "sauce" (El Salvador). 



This species is a common shrub along river valleys in the drier parts of Mexico, 

 often forming dense and extensive thickets. The branches are employed for 

 covering the rafters of houses before the tiles or thatch are placed upon them. 

 A decoction of the leaves is used as an eye wash, and the leaves are applied as 

 poultices to sores. The branches are often utilized for makiiig coarse brooms. 



