AUG. 1899. STUDIES IN THE HERBARIUM. I. ULINE. 419 



alia plicato-concava, omnia glaberrima, aequilonga (2 mm.). 

 Staminodia acuminata, simplicia vel in lacinias 2 dissecta. Fila- 

 menta capillacea, staminodiis 4 5-plo longiora. 



Central Paraguay, MORONG, 40. Distributed from Herbarium 

 Columbia University as> Alternanthera Achyrantha [A. repens (L) 

 Kuntze]. Type in Field Col. Mus. Herb. cat. nos. 18150, 

 18151. 



The nearest affinities of this plant are at once found in the 

 widely distributed A. paronychiodes, which it resembles very 

 closely in its dense prostrate habit, wool in the axils of the small 

 oblanceolate leaves, small white heads, and in its stamineal tube 

 characters. The heads are smaller and more densely flowered, 

 and the flowers are much smaller and glabrous, there being no 

 hairiness whatever within the inflorescence; though the heads, like 

 A. paronychiodes, are more or less enveloped at the base by white 

 simple, wooly pubescence. The stamineal cup is smaller, fila- 

 ments longer and decidedly slenderer, and the seed little more 

 than half the size of that of A. paronychiodes. 



Alternanthera (TELANTHERA) asterotricha Uline, n. sp. (PI. 

 XXIII.) 



Procumbens caulibus crassis subgeniculatis, ad nodos radicu- 

 las saepe gerentibus, versus apicin adcendentibus, superne pube 

 densissima grisea vestitis, pilis basi irregulariter ramosis; foliis 

 ovali-ellipticis, basi in petiolum gradatim contractis, apice ro- 

 tundatis, mucronulatis, supra laxius subtus densius pilosis, pilis 

 ramosis, capitulis minutis, in axillis foliorum juniorum sitis; 

 bracteis acuminatis, sepalis paullo brevioribus, sepalis exteriori- 

 bus trinerviis, lateralibus plicatis, omnibus dense patenti-pilosis, 

 pilis spinuligeris, staminodiis filamentis aequantibus, apice in 

 lacinias 5 dissectis, ovario globoso-obconico, stylo brevi. 



Caulcs crassi (2 2.5 mm.), internodiis 5 10 cm. longis. Folia 

 usque ad 6 cm. longa, breviter petiolata. Pubis plantae totae ra- 

 mosa, ramis simplicibus, setiformibus vel longiusculis, ramosis 

 et divaricatis, haud verticillatis. Flores 2.5 mm. longi, 2 mm. 

 lati, sepalis exterioribus valde nervatis, interioribus plicatis, cari- 

 natis, omnibus breviter aristatis, dorso pilosis, pube spinulifera. 

 Titbits staminealis ( ^ alt. filamentorum), filamentis staminodiisque 

 ovarium et stylum aequantibus. 



Yucatan, GAUMER, 1303. Type in Field Col. Mus. Herb. cat. 

 no. 57232. 



The singular pubescence of this plant gives to it its most 

 prominent specific character. The hairs of the sepals are simple 



