508 PROCEEDINGS OF THE AMERICAN ACADEMY, 
species of later date. At all events, it is highly inexpedient to per- 
mit the existence of imperfectly described plants to block the advance 
of classification in the groups concerned, and, while anxious to give 
proper recognition to all the more careful work of Schultz and others, 
we have no hesitation in frankly relegating their less intelligible species, 
for the present, to that limbo of dubie which must long be appended to 
several of the larger genera of the Verbesinee. 
In citing specimens, literature, and synonymy, the writers have aimed 
to supplement rather than to repeat what can be readily found in the 
Synoptical Flora, Biologia Centrali-Americana, Flora Brasiliensis, or 
Index Kewensis. Species of which no specimens have been seen during 
these revisions are marked by an asterisk (*). The writers are grateful 
to Mr. F. V. Coville and Dr. J. N. Rose for the loan of the genus Mon- 
tanoa from the U. S. National Museum, and to Miss Mary A. Day for 
the verification of references and other bibliographical assistance. 
MONTANOA, Llav. & Lex. Heads (except in one species) hetero- 
gamous with neutral ligulate uniseriate ray-flowers and few to many pel- 
fect disk-flowers (the inner sometimes sterile). Involucre subcylindric to 
hemispherical, its bracts mostly narrow, 1—2-seriate, linear- to lance-ob- 
long, rarely spatulate. Pales keeled, folded about the achenes, papery '° 
subcartilaginous, attenuate or abruptly narrowed to an acute and often 
spinescent tip, persistent, accrescent, and more or less squarrose in fruit, 
always somewhat villous (densely so in the first subgenus), but sometimes 
quite glabrate; receptacle conical. Ligules spreading, usually oblong and 
emarginate at the end, without styles; achenes of the ray-flowers abor- 
tive, empty, pappusless. Disk-flowers regular, tubular, 5-toothed ; propet 
tube slender, throat campanulate, and nerveless teeth ovate, acute- 
Style-branches slightly thickened upwards and appendagéd with a short 
or slender acumination; achenes thickish, laterally compressed, role 
tively short, obovate; pappus none. — Pithy-stemmed shrubs, sometimes 
arborescent, with opposite serrate, dentate, or often lobed leaves, and 
white or purplish corymbose heads. — Nov. Veg. Desc. ii. 11 (1825) 5 
Sch. Bip. in Koch, Wochenschr. vii. 406-408 ; Benth. & Hook. f. Gen- 
ii. 364; Hemsl. Biol. Cent.-Am. Bot. ii. 164; Hoffm. in Engl. & Prantl 
Nat. Pflanzenf. iv. Ab. 5, 232. Hriocarpha, Cass. Dict. Sci. Nat. lix- 
236 (1829). Eriocoma, HBK. Nov. Gen. & Spec. iv. 267, t. 396 
(1820).  Montagnea, DC. Prodr. v. 564 (1836). — An exclusively 
___meontogenous and very natural group of 32 distinct species, exteo 
ing from Northern Mexico to Panama, with outlying species as 
