ROBINSON. — ON CERTAIN COMPOSITAE. 215 



sutis ; capitibus in bifiircis arete sessilibus 1.4 cm. diametro multifloris ; 

 involucri squamis oblongis biseriatim imbricatis subaequalibus abrupte 

 acuminatis dorso glabriusculis leviter striatis margine conspicue albo- 

 ciliatis ; flosculis liguliferis ca. 8, ligulis brevissimis ovatis crassiusculiS' 

 albidis viridi-striatulis vix 1.5 mm. longis pistilliferis, acbaenio striatulo 

 glabriusculo exalato apice longiuscuie divaricatim 3-aculeato ; pappi 

 aculeis ca. 3 mm. longis; disci tlosculis numerosis, achaeniis murica- 

 tis. — Tensaw, Alabama, 18 August, 1904, ^S. 31. Tracy, no. 8946 

 (type, in Gray Herb.). This plant, distributed as Cah/ptrocarpus tam- 

 picanus Small, differs markedly from that species in its spatulate- 

 obovate leaves, larger closely sessile heads, and especially in its involucral 

 scales. These are dorsally nearly glabrous but on the edges conspicu- 

 ously ciliate, while in Calyptoca7'pus vialis Less. {Oligogpie tampicana 

 DC, Cahiptroca7-pus tampicana Small) the condition is reversed, that is 

 to say the involucral scales are dorsally strigose-pubescent but the 

 margin nearly or quite free from ciliation. The discovery of a second 

 and clearly distinct species of the hitherto monotypic Cabjptocarpus is 

 of interest. From the weedlike nature and wide distribution of its 

 Texano-Mexican congener, there must be some doubt whether the 

 plant here described will prove really indigenous in its Alabama habitat, 

 or whether it may not ultimately be found to be an introduction from 

 some other region. 



Balduina angustif olia (Pursh), comb. nov. Buphthalmum angusti- 

 follum Pursh, Fl. ii. 564 (1814). Actinospermum angustifoUum (Pursh) 

 Torr. & Gray, Fl. ii. 389 (1842). The distinctions by which some recent 

 efforts have been made to separate the genera ActlnOspermum and 

 Balduina do not appear to the writer to be of generic validity. 

 The genera being united, priority of specific name requires the new 

 combination here proposed. 



Senecio fimbrillifer (Cass.), comb. nov. Eupatorium auriculatum 

 Lam. Encyc. ii. 411 (1786), a specific name not available because of 

 Senecio auriculatus Burm. f. Fl. Ind. 181 (1768). Eupatorium scandens 

 Link, Enum. ii. 307 (1822) according to Lessing, Syn. Comp. 392 (1832), 

 this name also not available because of the now valid homonym Senecio 

 scandens Buch.-Ham. ex D. Don, Prod. Fl. Nepal. 178 (1825). Cacalia 

 fimhrillifera Cass. Diet, xlviii. 460 (1827). Senecio deltoideus Less. 

 Syn. Comp. 392 (1832). Mikania auriculata Willd, Sp. PI. iii. 1745 

 (1804). 



Senecio pyrifolius (Bojer), comb. nov. Trixis pyrifolia Bojer ex DC. 

 Prod. V. 195 (1836). MiTcania pyrifolia DC. 1. c. ; Klatt in Engl. Bot. 

 Jahrb. xii. Beibl. 27, p. 22 (1890). Senecio curvatus Bak. Jour. Linn 

 Soc. XX. 190 (1883). The identity of Mikania pyrifolia (Bojer) DC- 



