70 PROCEEDINGS OF THE AMERICAN ACADEMY. 
acute, about 12 mm. long, 2 to 4 mm. wide, with 2 rows of large glands; 
margins scabrous, naked or with 1 or 2 pairs of basal sete: heads about 
5 or 6 mm. high, 10-12-flowered, on elongated peduncles: involucre 
cylindric, 5-8-bracteate, the conduplicate bracts obtuse and with scarious 
margins: pappus of short equal pales, or with one of them longer, lance- 
attenuate and serrulate. — Linnea, vi. 711; DC. Prodr. v. 99 (Plum. 
Pl. Amer. ed. Burm. t. 86, f. 1). P. patula, L. f. in herb. fide DC. 
l.c.insyn. P. punctata, Swartz in herb. L’Her. fide DC. 1. ¢. in syn. 
P. ciliaris, Swartz, Obs. 307, not L. — Panama, hills around Loseria 
(S. Hayes, no. 690 fide Hemsley); also in Jamaica and Hayti. Plant 
unknown to us, the description drawn from Lessing and De Candolle. 
* * Pales many (10 to 20) at least in the disk. 
+— Stems more or less spreading or decumbent : leaves broadly linear. 
P. arenaria, Benth. A prostrate perennial, the smooth, thick stems 
creeping extensively and forming mats, sending up many short branches — 
with rosettes of leaves : leaves linear or spatulate-linear, 1 to 4 em. long; 
3 to 6 mm. wide, rounded at the tips and mucronate, pale beneath, ob 
scurely but closely pellucid-punctate, with a single marginal row of dark 
glands ; margins revolute, entire, with 3 to 7 pairs of basal sete: pe 
duncles erect or curving, 1 to 7 cm. long, compressed, angulate and almost 
winged above, with 2 to 7 prominent lance-subulate bracts 6 mm. long: 
involucre broadly cylindrical or campanulate, 8 to 12 mm. high, 4 to 8 
mm. broad, 20-90-flowered ; bracts 5 to 8, flat, imbricate, from lance | 
late to ovate-oblong, 2 to 6 mm. wide, obtuse or acutish, many striate, 7 
slightly keeled below the middle and tapering to conspicuously thickened | 
bases, sometimes sparingly ciliate: rays lanceolate to ovate-oblong; 6 oF fo 
7 mm. long: pappus sordid; in the disk of 10 to 20 linear-subulate very | 
unequal setiferous pales, 4 to 6 of them longer (4 mm. long) and more | 
dilated below than the others; in the ray shorter and usually fewer pales: | 
akenes compressed, 6 or 7 mm. long, smooth and glossy or spariNg’ | 
short-setose. — Bot. Voy. Sulph. 110. The synonymy of this species® | 
very confused, and, from the descriptions, it is difficult to make it oub 
Lorentea multiflosculosa, DC. was described in the Prodromus (v. 102) : 
from Peru, and from the description seems to be a form of Pectis canes 
cens, HBK. The name, however, was soon changed by Schultz Bipom 
tinus to Pectis multiflosculosa (Schz. Bip. in Seem. Bot. Voy. Heralt, 
309), but according to Bentham and Hooker f. (Gen. ii.412) P. mult 
fosculosa, Schz. Bip. in herb. is the same as P. arenaria, Benth. Sin | 
_ then, however, Klatt (Leopoldina, xx. 92) has founded upon P. multifios | 
LE oe 
