204 NORTH AMERICAN FLORA [VoLUME 34 
flowers 5; ligules yellow, oblong, 3 mm. long; disk-flowers 30-35; corollas 2.5 mm. long; achenes 
2-2.5 mm. long, short-hispid on the angles; pappus of the disk-flowers of 12-15, linear-subulate 
unequal squamellae, the longer 2 mm. long; that of the ray-flowers usually reduced to a short 
irregular crown of more or less united minute squamellae. 
Type LocaLity: Acapulco, Guerrero. : 
DISTRIBUTION: Known only from the type locality. 
25. Pectis cubensis (A. Rich.) Griseb. Cat. Pl. Cub. 156. 1866. 
Lorentea prostrata Tag. Gen. & Sp. Nov. 28. 1816. Not Pectis prostrata Cav. 1797. 
Lorentea humifusa Less. Linnaea 6: 719, in part. 1831. 
Lorentea cubensis A. Rich. in Sagra, Hist. Cuba 11: 36. 1850. 
A diffuse annual, much branched; stem prostrate, but not rooting, pilose along two 
decurrent lines, 1-2 dm. long; leaves oblong or linear, 6-20 mm. long, 1-3 mm. wide, rounded 
and muticous, or obtuse and mucronate or aristate at the apex, with 2-4 bristles near the base; 
glands scattered; heads in leafy cymes; peduncles 2-13 mm. long; involucre campanulate, 
4.5-6 mm. high, 2-4 mm. broad; bracts 5, oblong or obovate-oblong, mostly obtuse or 
rounded at the apex, carinate at the base, with scattered linear glands; ray-flowers 5; ligules 
yellow, oblong, 3-4 mm. long; disk-flowers 3-12; corollas 3-3.5 mm. long; achenes 3-3.5 mm. 
long, short-pilose on the angles or glabrate; squamellae 8-38, unequal, the longest 3.5 mm. 
long, bristle-like and scabrous above, more or less dilated at the base. 
TYPE LOCALITY: Cuba. 
DisTRIBUTION: Cuba. 
26. Pectis caymanensis (Urban) Rydberg, sp. nov. 
Pectis cubensis Hitche. Ann. Rep. Mo. Bot. Gard. 4: 101. 1893. Not P. cubensis Griseb. 1866. 
Pectis cubensis caymanensis Urban, Symb. Ant. 5: 282. 1907. 
A diffusely branched annual, prostrate; branches 1-3 dm. long, glabrous, rooting at the 
base; leaves linear, 5-8 mm. long, 1-1.5 mm. wide, usually acute and bristle-tipped, with 
4-7 pairs of bristles, either below the middle or along nearly the whole margins; glands in a 
single row along each margin; heads in leafy cymes; peduncles 1—2 cm. long; involucre narrowly 
campanulate, 4-4.5 mm. high, 2-3 mm. broad; bracts 5, linear-oblong, acutish or obtuse, cari- 
nate at the base; ray-flowers 5; ligules 2-3 mm. long, yellow, ascending; disk-flowers 3-10; 
corollas 2.5 mm. long; achenes 3 mm. long, glabrous or sparingly strigose on the angles; 
squamellae 15-20, scabrous, bristle-like, 1-2 mm. long, lanceolate-dilated at the base. 
TyPE Locatity: Grand Cayman. 
DistRIBUTION: Grand Cayman and keys off Cuba. 
27. Pectis erecta Fernald, Proc. Am. Acad. 40: 57. 1904. 
A perennial, with a slender woody caudex; stem erect, 1-2 dm. high, branching above, 
pulverulent; leaves linear, 1.5—3 cm. long, 1-2 mm. wide, pale-green, firm, acute, with 1 or 2 
rows of glands on each side and 2-5 pairs of bristles towards the base; heads solitary at the 
ends of the branches; peduncles 3.5-6 cm. long; involucre 5-6 mm. high, 5-6 mm. broad, 
turbinate; bracts 5, oblong or oblanceolate, finely ciliate at the rounded apex; ligules oblong, 
5-7 mm. long, yellow. turning crimson; disk-corollas 5 mm. long; achenes hispidulous; pappus 
of the disk-flowers of 6-8, of the ray-flowers of 2 or 3 bristle-like, hispidulous squamellae, more 
or less paleaceous and connate at the base, and 4-8 shorter ones. 
Type LocaLity: Grenada, Nicaragua. 
DIsTRIBUTION: Nicaragua. 
28. Pectis arenaria Benth. Bot. Voy. Sulph. 110. 1844. 
? Lorentea multiflosculosa DC. Prodr. 5: 102. 1836. 
? Pectis multiflosculosa Schultz-Bip.; Seem. Bot. Voy. Herald 309. 1857. 
Pectis bibracteata Klatt, Leopoldina 20: 92. 1884. 
A prostrate perennial; stem thick, creeping, branched, 3-10 dm. long, glabrous; leaves 
linear or linear-spatulate, 1-4 cm. long, 3-6 mm. wide, rounded at the apex, slightly connate 
at the base, thick, pale beneath, with revolute margins and 3-7 pairs of bristles below; glands 
