J444 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 



7. Eupatorium ovaliflorum Hook. & Am. Bot. Beechey Voy. 297. 1840. 

 Tepic; type locality stated merely as Mexico. 



Shrub, 1 to 2 meters high; stems round, canelike; leaves narrowly ovate, ser- 

 rate, acuminate, subcoriaceous, at first downy on the upper surface, but later 

 minutely and densely papillose, beneath pubescent to subtomeutose, strongly 

 reticulate-veiny, pinnately 5-nerved, 5 to 12 cm. long, 2 to 4.5 cm. wide; petiole 



3 to 12 mm. long; heads about 23-flowered, mostly short-pediceled, in small 

 round-topped panicles; involucre oval, the phyllaries ovate, obtuse, commonly 

 tinged with purple or brown, closely appressed, striate, ciliolate. 



8. Eupatorium odoratum L. Syst. Nat. ed. 10. 1205. 1759. 

 Eupatorium conyzoides Mill. Gard. Diet. ed. 8. Eupatorium no. 14. 1768. 

 Eupatorium divergent Less. Linnaea 5: 138. 1830. 



Eupatorium graciliflorum DC. Prodr. 5: 145. 1836. 



Osmia odorata Schultz Bip. Pollichia 22-24: 250. 1866. 



Osmia divergens Schultz Bip. Pollichia 22-24: 252. 1866. 



Osmia graciliflorum Schultz Bip. Pollichia 22-24: 252. 1866. 



Common in nearly all parts of Mexico which are suited by climate for meso- 

 phytic vegetation. Widely distributed in tropical America. 



Vigorous shrub, erect or somewhat vinelike, with long, leaning or reclining 

 stems; leaves triangular- or rhombic-ovate, acuminate, abruptlj' narrowed to a 

 more or less pointed base, mostly serrate or crenate and often near the broadest 

 part of the blade somewhat hastately toothed, rarely entire, from glabrous to 

 tomentose, slender-petioled; heads numerous, in flattish corymbs, mostly 15 to 

 25-flowered; corollas pale blue to white. "Xtokabal" (Yucatdn); "cihuapath," 

 "oiguapazle," "crucita" (San Luis Potosi, Seler); "Santa Maria" (Porto Rico); 

 "crucita olorosa," "garrapata" (Nicaragua); "varej6n de caballo" (Colombia). 



Seler reports that the roots are employed as an emmenagogue. 



9. Eupatorium araliaefolium Less. Linnaea 8: 403. 1831. 



Eupatorium omphaliacfolium Kunth & Bouchc, Ind. Sem. Hort. Berol. 1844, 

 coll. adnot. no. 13; Walp. Repert. Bot. 6: 113. 1846-47. 



Eupatorium heterolepis Robinson, Proc. Amer. Acad. 35: 335. 1900. 



Veracruz; type collected in woods at Misantla. British Honduras and Guate- 

 mala. 



Soft-woody shrub, glabrous except in inflorescence; stems 6-angled and often 

 compressed; leaves oblong-elliptic, pointed at both ends, entire, feather-veined, 

 subcoriaceous and somewhat fleshy, opaque, drying dark, 11 to 19 cm. long, 



4 to 7 cm. wide; petiole about 5 cm. long; heads paniculate, about 25-flowered, 



1 cm. long; inner phyllaries long, narrow, subequal, caducous, the outer much 

 shorter, persistent; corollas white. 



Introduced into European horticulture and for several decades cultivated as 

 a greenhouse plant of some decorative value. 



10. Eupatorium pinabetense Robinson, Proc. Amer. Acad. 36: 482. 1901. 

 Known only from the type locality, near Pinabete, Chiapas. 



Shrubby, essentially glabrous; stems somewhat 6-angled; leaves oblong-lanceo- 

 late, attenuate at both ends, serrulate, feather-veined, mostly 10 to 15 cm. long, 



2 to 3 cm. wide, opaque, firmly membranaceous; heads about 35-flowered, 4 mm. 

 high, in dense rounded panicles; phyllaries yellowish brown, obtusish, ciliolate. 



11. Eupatorium pittieri Klatt, Bull. Soc. Bot. Belg. 3V: 192. 1892. 

 Chiapas. British Honduras, Guatemala, and Costa Rica. 



Shrub, finely pubescent; leaves elliptic-oblong, acuminate, acute at base, ser- 

 rate (rarely entire), feather- veined, thickish, opaque; veins prominent beneath; 

 heads small, numerous in open pyramidal panicles; phyllaries broadly ovate to 

 elliptical, mostly rounded at the tip, 3 to 5-nerved. 



