596 PROCEEDINGS OF THE AMERICAN ACADEMY. 



montium Sierra Madre inter Michoacan et Guerrero, alt. 2250 m., 

 16 Feb. 1899, E. Langlasse, n. 878 (specimine typico in hb. Grayano 

 conservato). 



6. It. polymnioides Greenman, verisimiliter herbacea vel subher- 

 bacea ; caule purpurascenti striatulo-angulato crispe albido-pubescenti 

 fistuloso ; foliis oppositis late ovatis acute acuminatis 1-1.2 dm. longis 

 ca. 8 cm. latis 3-nerviis reticulato-venosis mucronato-denticulatis supra 

 viridibus breviter pubescentibus subtus pallidioribus griseo-tomentellis 

 et resinoso-atomiferis basi primo abrupte deinde cuneate ad petiolum 

 2-3 cm. longum per totam longitudinem alatum angustatis; capitulis 

 in paniculam laxam planiusculam 2-3 dm. diametro dispositis, pedi- 

 cellis griseo-hirsutis gracilibus 1-3 cm. longis saepe nutantibus ; 

 involucri squamis exterioribus 5 late ovatis acutis herbaceis 3-nerviis et 

 reticulato-venosis extus laxe griseo-hirsutis intus paulo pallidioribus 

 glaberrimis margine albido-puberulis vel -pulverulis, squamis interi- 

 oribus linearibus conduplicatis attenuatis hispidulis ; flosculis 9 ca. 15, 

 ligulis minimis, tubo gracili hispido ca. 3 mm. longo, lamina oblonga ca. 

 4 mm. longa 1.8 mm. lata apice 3-lobata flava ; flosculis disci ca. 80, 

 corolla flava, tubo proprio hispidulo 3 mm. longo basin versus non 

 ampliato fauces cylindricos aequanti ; achaeniis laevibus pallide 

 brunneis oblique obovatis modice compressis plus minusve 4-gonis. — 

 Proc. Am. Acad, xxxix. 99 (1903). — In agris ubi colitur Zea Mais, 

 Copey, Costa Rica, alt. 1800 m., Apr. 1898, Tonduz, n. 11,947. 



