200 NORTH AMERICAN FLORA [VoLUME 34 
10. Pectis martinicensis Urban, Symb. Ant. 5: 276. 1907. 
Pectis carthusianorum Duss, Fl. Ant. Fr. 372. 1897. Not P. carthusianorum Less. 1831. 
A leafy annual; stem ascending or recurved-erect, rarely procumbent, 3-6.5 dm. high, 
puberulent in lines; ne below, dichotomously or trichotomously branched; leaves oblong- 
linear or linear, 2-3.5 em. long, 3-5 mm. wide, scarcely connate, with 2-8 pairs of eas 
below; glands sparse, scattered; heads solitary in the axils, on peduncles 2-6 mm. long; i 
volucre 6-6.5 mm. high; bracts 5, linear-oblong to obovate-oblong, carinate at the ee 
obtuse or rounded at the apex; ray-flowers 5; ligules oblong, about 2 mm. long; disk-flowers 
12 or 13; corollas about 2.5 mm. long; achenes 3.5 mm. long, hirsutulous on the angles; 
squamellae of the disk-flowers 5, of the rays 4 or 5S, lanceolate, aristate-acuminate, equaling 
the disk-corollas. 
TYPE LOCALITY: Sainte Anne, Martinique. 
DISTRIBUTION: Martinique. 
11. Pectis brevicaulis Urban, Symb. Ant. 5: 279. 1907. 
A leafy annual; stem erect, 2.5-3.5 cm. long, simple, densely leafy above; leaves oblong- 
linear or linear, 1.5—2.5 cm. long, 2-3 mm. wide, connate at the base, ciliate their whole length, 
with up to 15 pairs of bristles; glands small and inconspicuous, irregularly scattered; heads 
numerous at the ends of the branches, congested among the leaves; involucre 6-6.5 mm. high; 
bracts 5, linear-oblong, acute or obtuse at the apex; ray-flowers 5; ligules oblong; disk-flowers 
14 or 15; corollas 3 mm. long; achenes 3.5 mm. long; squamellae lanceolate, acuminate, those 
of the disk-flowers 5, rarely 4, of the ray-flowers 2 or 3. 
TYPE LocALITy: Santo Domingo. 
DISTRIBUTION: Known only from the type locality. 
12. Pectis carthusianorum Less. Linnaea 6: 712. 1831. 
A stout leafy annual; stem erect, 1.5-4.5 dm. high, thick, simple or branched above, 
usually with short erect branches; leaves numerous, oblong-linear or linear, 1.5—4 em. long, 
2-5 mm. wide, connate at the base, with 2-9 pairs of bristles towards the base; glands scat- 
tered; heads clustered at the ends of the branches, sessile among the leaves; involucre 5—5.5 
mm. high, 2.5—3 mm. broad; bracts 5, oblong-linear to broadly oblong, obtuse or subtruncate; 
ray-flowers 5; ligules 2-2.5 mm. long; disk-flowers 7-9; corollas about 3 mm. long; achenes 
3.5-4 mm. long, hirsutulous on the angles; squamellae of the disk-flowers 5, of the ray- 
flowers 3 or rarely 4, linear-lanceolate, aristate-acuminate. 
TYPE LocaLity: Santo Domingo. 
DistRiBpuTION: Cuba, Hispaniola, and Porto Rico; also in Venezuela. 
13. Pectis ciliaris I,. Syst. Nat. ed. 10. 1221. 1759. 
Chthonia glaucescens Cass. Dict. Sci. Nat. 9: 173. 1817. 
Pectis anceps Less. Linnaea 6: 715. 1831. 
Chthonia ciliaris Cass.; Steud. Nom. Bot. ed. 2. 1: 360. 1840. 
Pectis ciliata Steud. Nom. Bot. ed. 2. 1: 360, assynonym. 1840. 
A branched annual; stem erect or ascending, 0.5—2.5 dm. high, with ascending branches, 
pilose along decurrent lines; leaves oblong-linear or linear, 1.5-3.5 cm. long, 1.5-5 mm. wide, 
connate at the base, with 4-12 pairs of bristles, mostly below the middle, but sometimes along 
the whole margin; glands scattered; heads clustered at the ends of the branches, 2-8 together, 
sessile or short-peduncled, the peduncles less than 3 mm. long; involucre 4.5-5.5 mm. high, 
2-2.5 mm. broad; bracts oblong-linear to broadly oblong, obtuse or rounded at the apex; ray- 
flowers 5; ligules about 2 mm. long, ascending; disk-flowers 4-12; corollas 2-3 mm. long; achenes 
2.5-3.5 mm. long, hirsutulous; squamellae of the disk-flowers usually 5, of the ray-flowers 2 or 
3, linear-lanceolate, aristate-attenuate, as long as the disk-corollas. 
Type Locatity: [Not given, but supplied in L. Pl. Jam. 24.] Jamaica. 
DISTRIBUTION: Greater Antilles. 
ILLUSTRATION: Plum. Pl. Am. pl. 151, f. 1 (?; poor). 
