212 PROCEEDINGS OF THE AMERICAN ACADEMY. 



2.5 dm. diametro multicapitulata griseo-tomentella, pedicellis filiformi- 

 bus 6-8 mm. longis ; capitulis ovoideo-subglobosis ca. 38-floris 

 anthesi ca. 5 mm. diametro ; involucri squamis oblongis acutis vel acu- 

 minatis pallidis dorso molliter piiberulis, extimis multo brevioribus 

 apice obtusiusculis vel etiam rotundatis crassiusculis nigrescentibus ; 

 flosculis liguliferis ca. 5 pistilliferis, ligulis albis subquadratis 3-dentatis 

 2.5 mm. longis, tubo 2 mm. longo tomentello ; corollis disci 3.5 mm. 

 longis, tubo et faucibus tomentellis ; acheniis obovatis late bialatis, facie- 

 bus plus minusve in media parte carinatis sursum scabridis vel tnber- 

 culatis, pappi aristis 2 subaequalibus. — Santa Marta, Colombia, 

 December, 1898-1901, altitude 75 m., H. H. Smith, no. 671 (type, in 

 Gray Herb.) ; also from tbe banks of the Magdalena River, Quematido, 

 Colombia, 5 December, 1875, Andre, no. 222 (Gray Herb.). The latter 

 specimen is said to have been herbaceous and 3-5 m. high. Mr. Smith's 

 plant was distributed as V, gigantea Jacq., but it differs from that spe- 

 cies of the Antilles in having heads about 38-flowered instead of about 

 20-flowered, in having broadly winged achenes, and in details of foliage 

 and involucre. The related Y. myriocephala Sch. Bip. of Mexico also 

 has smaller subcylindric about 20-flowered heads and narrowly winged 

 achenes. 



Verbesina costaricencis, sp. nov., herbacea vel basi lignescenti 

 alta ; caule teretiusculo leviter striato-angulato glabro exalato purpur- 

 ascenti glaucescenti medulloso ; foliis alternis magnis longipetiolatis 

 profunde pinnatifidis 1.5-2 dm. longis 1—1.4 dm. latis supra dense 

 scabro-pubescentibus atroviridibus subtus pallidioribus molliter pubes- 

 centi-tomentellis, lobis ca. 11 lanceolato-oblongis acuminatis obsolete 

 subremoteque serrulatis 7-10 cm. longis 2-3.5 cm. latis, rhachi alato 

 1-1.3 cm. lato, sinubus rotundatis ; corymbis compositis terminalibus 

 planiusculis multicapitulatis 1.5 dm. diametro basi foliaceo-bracteatis ; 

 capitulis obovoideis discoideis 8 mm. altis 5 mm. diametro ; involucri 

 squamis exterioribus valde inaequalibus anguste oblongis apice sub- 

 herbaceis nigrescentibus rotundatis vel vix mucronulatis 1-4 mm. 

 longis interioribus subaequalibus ca. 6 mm. longis tenuibus diaphanis 

 acutiusculis glabriusculis margine erosis ; flosculis liguliferis nullis, eis 

 disci ca. 21 ; corollis 3.6 mm. longis, tubo proprio plus minusve con- 

 stricto strigilloso brevi, faucibus cylindricis tubo duplo longioribus, limbi 

 dentibus oblongo-lanceolatis ; achaeniis compressis oblanceolatis sur- 

 sum hispidulis basin versus attenuatis tenuiter costatis marginatis vix 

 alatis ; pappi aristis saepius 3 achaenium subaequantibus duabus inter 

 se continguis in angulo interiori, tertia eis opposita. — V. nicaraguen- 

 sh .7. D. Sm. Enum. PI. Guat. v. 44 (1899), not Benth. — Rio Virilla, 

 San Jos^, Costa Rica, altitude 1100 m., December, 1895, Ad. Tonduz* 



