412 PROCEEDINGS OF THE AMERICAN ACADEMY. 
bracteis involucri exterioris ca. 4 elliptico-lanceolatis alternis acumi- 
natis ca. 12 mm. longis tenuibus foliis similibus; squamis involueri 
proprii 8 lanceolati-linearibus attenuatis ca. 14 mm. longis dorso glan- 
duloso-puberulis medio herbaceis margine subscareosis demum stellato- 
patentibus divaricatis apice falcatis ; corollis ca. 1 cm. longis laete 
flavis ; achaeniis 5 mm. longis columnaribus papilloso-setulosis ; pappi 
setis albo-fulvescentibus ca. 9 mm. longis. — GuaTEMALA : along river, 
alt. 230 m., Zacapa, 19 June, 1909, Charles C. Deam, no. 6359 (type, 
in Gray Herb.). This shrub differs from such related species as 
T. megalophylla Greenman, 7’. silvatica Robinson & Greenman, 7. Nel- 
sonii Greenman, and 7. rugulosa Robinson & Greenman, in its much 
thinner, flatter, softer, and essentially entire leaves of rhombic-obovate 
form. From 7. frutescens P. Browne and its relatives the present 
plant is readily distinguished by its larger outer involucre, the silky 
under surface of its leaves, etc. 
Chaptalia semifloscularis (Walt.), n. comb. Perdiciwm semiflos- 
culare Walt., Fl. Car. 204 (1788). Chaptalia tomentosa Vent. Desc 
Jard. Cels, t. 61 (1800). Tussilago integrifolia Willd. Sp. PI. iit. 
1964 (1804). Gerbera Walteri, Sch. Bip. in Seem. Voy. Herald. 313 
(1856). Thyrsanthema semiflosculare (Walt.) Ktze. Rev. Gen. i. 369 
(1891). 
Ill. AMERICAN FORMS OF LYCOPODIUM 
COMPLANATUM. — 
5 By C. A. WraTHERBY. 
Lycopodium complanatum LL. occurs in the western hemisphere in 
two distinct and geographically isolated areas. In the north, it 
Brazil. It also been reported from the West Indies. Specimens 
from these areas show, on examination, four more or less we ais 
variant tendencies —two (one with a subsidiary variation) ™ WY 
north, and in the south, two others, separable from each other an¢ 
from both of the northern forms. Fer. 
The northern forms have been clearly distinguished by Bat 
naldt The two southern (one chiefly Mexican, the other cit! 
ATR SOMERS O see eae | ae 
+ Rhodora, iii. 280 (1901). 
