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 puberulis, 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 tuber- 
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 the banks of the Magdalena River, Quematido, 
Colombia, 5 December, 1875, André 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 V. 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 em. 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 
isci 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- 
sis J. D. Sm. Enum. Pl. Guat. v. 44 (1899), not Benth. — Rio Virilla, 
San José, Costa Rica, altitude 1100 m., December, 1895, Ad. Tonduzs 
