378 SYNANTHERB^. 



Sect. 2. EuPECTis. — Pappus \-serial, of distinct scales, nsually produced into scairotis 



awns. 



* Heads pedicellate, single. 



125. P. Swrartziana, ZgM. Annual, glatrous, slender, trichotomously branched above ; 

 leaves oMong-linear, mucronnlate, dotted beneath, scabrous on the margin : bristles fevf at 

 their base (or none) ; heads pedicellate : involucral scales 8-5, oblong-linear, blunt, convo- 

 lute; ray 8-5-, disk 5-flowered; achenia hispidulous: *cato »««»«<«, most of them devoid 

 of awns. — Plum. Ed. Burm. t. 86. /. 1 : rough. — P. ciliaris, 8w. {non L.). — 1-2' high ; 

 leaves 3'" broad. — Hab. Jamaica !, Macf., in dry soil ; [Haiti ; Panama I]. 



/ 126. P. linifolia, Less, {exclus. syn^. Annual, slender, branched at the base : inter- 

 nodes pubernlous, hairs in 2-4 rows ; leaves linear, mucronulate, dotted beneath, scabrous on 



' the margin and midrib beneath, with long bristles below the middle ; pedicels about as long 

 as the heads; involucral scales 5 (-6), oblong-linear, bluntish, convolute ; ray 5-, disk 10-5 

 (-few)-flowered ; achenia pubescent, of the ray 2-, of the disk 4-5-awned : awns subeqnal, 

 dilated at the base into a lanceolate scale. — Spithameous -IJ' high ; leaves l"'-4"' broad. — 

 Hab. Jamaica I, Macf.; [Key West to S. Thomas]. 



** Heads subsessile, or longer thdn their pedicel. 



127. P. ciliaris, Z. (non Less ^. Annual, branched from the base ; stems slender, often 

 compressed, pubernlous, hairs in 2 rows ; leaves obversely lanceolate-linear, rounded-acute, 

 usudly tapering below the middle, dotted beneath, scabrous on the margin, with long bristles 

 below the middle ; heads single-ternate, subsessile, or longer than their pedicel ; involucral 

 scales 5, oblong, mucronulate, keeled below ; ray 5-, disk 5-8-flowered ; achenia hispidulous, 

 of the ray 2(-3)-, of the disk 5-4-awned : awns subeqital, lanceolate below the middle. — 

 P. anceps. Less. P. costata, Ser. Though Plumier's rough figure, quoted by Linnseus, is to 

 be excluded, from his description and the Jamaica origin, this is evidently Ms P. ciliaris. — 

 Spithameous-1' high ; leaves 1" long, or shorter, 2'"-l"' broad. — Hab. Jamaica !, Macf., 

 M'Nab, Pd., S. Andrews, in the Liguana plains ; [Cuba]. 

 << 128. P. prostrata, Coo. Annual, procumbent, branched from the base : intemodes pu- 

 bernlous, hairs in 2 rows ; leaves obversely lanceolate, mucronulate or blunt, tapering towards 

 the base, dotted with scattered glands, scabrous on the margin, with long bristles near the 

 ' base ; heads single, subsessile, or much longer than their short pedicel ; involucral scales 5, 

 i/joblong, thickened on the back ; ray 5-, disk 5-6-iiowered ; achenia iispidulous, of the disk 

 "with 5-4, of the ray with 2, unilateral scales : scales lanceolate, shortly awned: the awns 

 shorter than the scale, subequal. — Cav. Ic. t. 324. Plum. Ed. Burm. t. 99. /. 2 : rough. 

 3"-8" long; leaves IC'-G'" (-15'") long, 2"'-l"' broad.— Hab. Antigua!, Wullschl; 

 [Cuba ! ; Texas !, New Mexico I, Yucatan !, New Granada !, Brazil I]. 



129. P. humifasa, 8w. Annual, suffrutescent at the base, procumbent, branched 

 from the base ; leaves spathulate, rounded at the top, mucronulate, or usually quite blunt, 

 dotted with scattered glands, scabrous on the margin, with long bristles near the base ; 

 heads single,- mu.ch longer than their short pedicel, or subsessile ; involucral scales 5, oval- 

 oblong, blunt, keded below ; ray 5-, disk 10(-20)-flowered ; achenia hairy in rows, of the 

 ray 5-3-, of the disk 14-6-awned : a^ons subequal, linear at the base. — P. prostrata, Sieb. 

 P. Sieberi, Less. P. serpyUifolia, Less. : a small-leaved form. — B"-6" long ; leaves 6"-S" 

 long, 2"'-l '" broad.— Hab. St. Kitts (5w.), Antigua !, Wullschl., Dominica !, Imr., in savan- 

 nahs, S. Vincent 1, Guild. ; [Portorico I to French islands I]. 



130. P. Plumieri, Or. {n.sp.). Suffrutescent at the base; stems ascending, stout, 

 obtusely 4-gonal, glabrous, shortly-branched above; leaves linear, acuminate, dotted be- 

 neath, scabrous on the margin, with long bristles near the base ; heads narrow, single-gemi- 

 nate, much longer than their short pedicel ; involucral scales 5, linear, acuminate, convolute ; 

 ray 5-, disk 5-few-flowered ; achenia glabrescent, of the ray 3-4-, of the disk 8-awned: 

 awns subequal, setaceous at the slighly dilated base. — Plum. Ed. Burm. t. 151. /. 2 : 

 rough. — Root apparently perennial ; stems several, spithameous-1' high ; leaves 14'''-9"' 

 long, 1'" broad, channelled ; heads 4'" long ; awns scabrous, long, in the ray often one 

 shorter. — Hab, Jamaica I, M'Nab, S. Marys. 



