46 PROCEEDINGS OF THE AMERICAN ACADEMY. 



dentatis (nee lobatis) et cuspidato-denticulatis ; petiolo 1.5-2 dm. longo 

 atropurpureo griseo-piloso ; inflorescentia ampla pyramidata, bracteis 

 inferioribus saepe petiolatis foliis similibus sed multo minoribus, brac- 

 teis superioribus angustissime linearibus vel subfiliformibus atropurpu- 

 reis glanduloso-pilosis ; capitulis numerosis in summis ramis ramulisque 

 nutantibus ca. lO-floris 2 cm. longis ; involucri subcylindrici calyculo 

 bracteolarum subfiliformium suffulti squamis lineari-lanceolatis ca. 10 

 ca. 1.5 cm. longis in carina atropurpurea griseo-puberulis margine albido 

 subscarioso levibus ; corollis 13 mm. longis glabris, tubo proprio gracili 

 8 mm. longo, faucibus vix ullis, limbo in lobis linearibus profuude par- 

 tito ; achaeniis 5 mm. longis adpresse iomentulosis ; pappi setis tenui- 

 bus laete albis corollam aequantibus. — ■ Uruapan, Michoacan, Mexico, 

 11 October, 1899, E. W. D. Holway, no. 3617 (type, in hb. Gray); 12 

 November, 1905, C. G. Prlngle, no. 13,672 ; in granitic soil on the 

 Sierra Madre of Michoacan or Guerrero, alt. 1100 m., 6 September, 1898, 

 E. Langlasse, no. 576. This species is near C. peltata HBK., but is 

 readily distinguished by its leaves, which are less deeply lobed, the 

 lobes not again sinuately lobed, and by the smaller exceedingly narrow 

 bractlets, those of C. peltata being foliaceous. 



Cacalia LAEVIGATA Sch. Bip. ex Klatt, Leopoldina, xxiv. 125 (1888). 

 Senecio heteroideus Klatt, 1. c. (1888). Cacalia long i pet iolata Robinson & 

 Greenman, Am. Jour. Sci. 1. 157 (1895). When in 1895 the authors 

 of C. longlpetiolata characterized that species they knew C laevigata 

 only from Klatt's description. A drawing and some fragments of the 

 type of C. laevigata, subsequently received at the Gray Herbarium by 

 the purchase of the Klatt Herbarium, prove beyond doubt the identity 

 of C. long ipet iolata with C. laevigata, a correspondence which could 

 scarcely have been inferred from the brief and in some respects mislead- 

 ing characterization of C. laevigata given by Klatt. 



Cacalia michoacana Robinson, n. sp., herbacea perennis pilis crispis 

 griseis puberula ca. 9 dm. alta ; caule simplici leviter flexuoso striato 

 atropurpureo medio folioso basi et apice nudiusculo ; caudice crasso 

 lanato ; foliis ca. 10 suborbicularibus palmato-lobatis 3-6 cm. longis 

 5-8 cm. latis crassiusculis utrinque reticulato-venulosis et in venis pu- 

 berulis supra laete viridibus subtus pallidioribus basi subtruncatis vel 

 latissime cordatis, lobis 5-7 brevibus triangularibus margine cuspidato- 

 denticulatis ; capitulis ca. 6 ramos ascendentes inflorescentiae termi- 

 nantibus ca. 30-floris 1.5 cm. longis 2 cm. diametro longe pedicellatis ; 

 involucri atropurpurei campanulato-subcylindrici squamis principalibus 

 ca. 15 lineari-lanceolatis dorso atropurpureis carinatis margine albis 

 tenuibus subscariosis, involucro basi squamis minimis calyculato ; co- 

 rollis 1 cm. longis, tubo proprio viridescenti gracillimo 5 mm. longo, 



