46 DINGS OF THE AMEKIi AN ACADEMY. 



dentatia nee lobatis el ouspidato-denticulatis ; petiolo 1.5-2 dm. longo 

 atroparpureo griseo piloso ; inflorescentia ampla pyramidata, bracteis 

 inferioribus saepe petiolatia foliis similibus Bed multo minoribus, bi 

 saperioribas angustissime Linearibus vel subhliformibus atropur] 

 reis glanduloso-pi] tpitulis numerosis in Bummis ramis ramulisque 



nutantibua ca. 10-floris 2 om. longis \ involucri Bubcylindrici calyculo 

 bracteolarum subfiliformium suffulti squamia lineari lanceolatie ca. 10 

 ci. 1.5 em. longia id carina atroparpurea griseo puberulis margine albido 

 Bubsoarioso levibus; corollie L3 nun. longis glabris, tubo proprio gracili 

 8 nun. Longo, faucibus vix nllis, limbo in Lobis linearibus profunde par- 

 tite; acbaeniis 5 mm. longis adpresse tomentulosis ; pappi Betia fcenui- 

 lius lacte ;ill»is corollam aeipiantibus. Oruapan, Michoacan, Mes 

 II October, 1899, K W. D. Holway, no. 3617 (type, in hb. Gray ; 12 

 November, 1905, G. G. Pringle, no. 13,672; in granitic soil on 

 Sierra Madreof Michoacan or Guerrero, alt I 100 m., 6 September, I B98, 

 /.'. Langlasse, do. 576. This species is near G. peltata BGBK., but is 

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

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

 bract K ts, those of G. peltata being foliaceous. 



Cai \i.i\ LAEVIGATA Seh. Hip. ex Klatt, Leopoldina, xxiv. 1 _' .". (1888). 

 ,s' necio heteroideus Klatt, l.c.< L888). Cacalia longipetiolata Robinson & 

 Greenman, Am. Jour. »Sei. 1. 1">7 (1895). When in 1895 the authors 

 of G. longipetiolata characterized that species they knew G. laevig 

 only from Klatt's description. A drawing and - »me fragments of the 

 type "f G. / >< vigata, subsequently received at the Gray Herbarium by 

 the purchase <>| the Klatt Herbarium, prove beyond doubt the identity 



of G. longipetiolata with ('. laevigata, a corres] lence which could 



Bcaroely have been interred from the brief and in some respects mislead- 

 ing characterization of <'. /,/, vigata given by Klatt. 



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

 griseis puberula ca. \\ dm. alta ; caule simplici Leviter flexuoso striate 

 atropurpureo medio folioso basi el apice nudiusculo; caudice crasso 



lanato ; foliis ca. In suborbioularihus palmato lobatis .*!-() cm. longis 



5-8 om. lit i - crassiusculis utrinque reticulato-venulosis et in venis pu- 

 berulis supra laete viridibus subtus pallidioribus basi Bubtruncatis vel 

 latissime oordutis, lobis ."1-7 brevibus triangularibus margine cuspidate 

 denticulatis ; oapitulis ca. »'> ramos ascendentes inflorescentiae termi- 

 nantilius ca. 30 Boris i."> cm. longis •_' cm. diametro longe pedicellatis ; 

 involucri atropurpurei campanulato Bubcylindrici squamia principalibus 

 ca. i.'i lineari lanccolatis durs» 1 atidpurpureis carinatis margine albis 

 tenuibus subscariosis, involucro basi squamia minimis oalyculatoj co- 

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



