STANDLEY TREES AND SHRUBS OF MEXICO 1453 



Probably a soft-wooded shrub, clothed with fuscous tomentum; leaves oppo- 

 site, rhombic-ovate, long-acuminate, often falcate, sharply serrate, about 8 cm. 

 long, 3 to 3.5 cm. wide, cuneate at base; heads few, large, densely clustered; 

 phyllaries oblong, acute, dorsally puberulent on the upper part; corollas purple 



52. Eupatorium atrorubens (Lem.) Nicholson, Diet. Gard. 1: 540. 1885. 

 Hebeclinium atrorubens Lem. Illustr. Hort. 9: pi. 310. 1862. 

 lEupatorium grandiflorum Andr^, Rev. Hort. 1882: 384 (with unnumbered 



plate). 1882. 



? Eupatorium raffillii Hemsl. in Curtis's Bot. Mag. 134: pi. 8227. 1908. 



Raised from seed collected in Mexico (probably Chiapas) by Ghiesbreght. 



Robust but scarcely lignescent, 60 to 80 cm. high; stems several, terete, 

 densely clothed with long, spreading, red or purple, jointed hairs; leaves 10 to 30 

 cm. long, more than two-thirds as wide, opposite, petiolate, acuminate at apex, 

 obtuse to cordate at base, cuspidate-dentate; corymbs terminal, 20 to 30 cm. in 

 breadth; heads numerous, about 12 mm. high; phyllaries lance-linear, attenuate, 

 red or purple-villous on the back. 



A species marked by the highly colored pubescence closely investing its stems. 

 Introduced into European horticulture about 1862. Scarcely more than a 

 selected or ameliorated form of E. sordidum Less. 



53. Eupatorium megalophylluin (Lem.) Klatt, Leopoldina 20: 90. 1884. 

 Hebeclinium macrophyllum Lem. Cat. Hort. J. Versch.; Lem. Illustr. Hort. 9: 



74. 1862. 



Hebeclinium megalophyllum Lem. Illustr. Hort. 9: 73. 1862; Regel, Garten- 

 flora 16: pi. 548. 1867. 



Described from cultivated material believed to have been of Mexican origin; 

 not known in the wild. 



A stout suffrutescent plant with terete green stems; leaves opposite, long- 

 petioled, suborbicular, bluntly pointed to subcordate at base, shortly pointed at 

 apex, shallowly cuspidate-dentate, often 30 cm. or more in diameter; corymbs 

 compovmd, dense, 30 to 50 cm. wide; heads about 60-flowered; phyllaries oblong- 

 linear, acute; corollas illustrated as roseate and the conspicuous style branches 

 as azure. 



Not satisfactorily known. 



54. Eupatorium thespesiaefolium DC. Prodr. 5: 164. 1836. 

 Morelos and probably Orizaba; the type from Mexico without locality. 

 Hollow-stemmed shrub or perhaps scarcely more than a stout herb, 1.5 to 2.5 



meters high; stems terete, densely covered with sordid, somewhat tawny wool; 

 leaves opposite, petiolate, ovate, acuminate, very blunt or subtruncate at base, 

 pinnately 7 to 9-nerved, thin, 18 to 22 cm. long, 10 to 15 cm. wide; corymbs 

 5 to 15 cm. in diameter; phyllaries lanceolate, tomentellous on back; corollas 

 and especially the long style branches clear rose color. 

 Doubtfully distinct from the following. 



55. Eupatorium sordidum Less. Linnaea 6: 403. 1831. 

 Conoclinium ianthinum Morren, Ann. Soc. Agr. Bot. Gand 5: 173. 1849. 

 Hebeclinium ianthinum Hook, in Curtis's Bot. Mag. 77: pi. 4574. 1851. 

 Hebeclinium panamense Carr. Rev. Hort. 1877: 330 (with unnumbered plate). 



1877. 

 Eupatorium ianthinum Hemsl. Biol. Centr. Amer. Bot. 2: 96. 1881. 

 Eupatorium brevipetiolatum Klatt, Leopoldina 20: 90. 1884; in part only, 



namely as to plant of Sartorius. 

 Eupatorium septuplinervium Klatt, Leopoldina 20: 90. 1884. 

 Hebeclinium sordidum Schultz Bip.; Klatt, Leopoldina 20: 91. 1884. 

 Hebeclinium macrocephalum Schultz Bip.; Klatt, Leopoldina 20: 91. 1884. 



