FERNALD. — GENUS PECTIS. 71 



culosa, Schz. Bip., not Lorentea multijlosculosa, DC, a new species, 

 JR. bibracteata. With uo authentic specimens at hand of the plants of 

 either Schultz or Klatt the synonymy must still remain confused. The 

 foregoing description of P. arenaria is drawn in part from material which 

 has been kindly compared by Mr. Thiselton-Dyer with Bentham's type. — 

 Prostrate in the sands of the Pacific coast of Mexico and Central America, 

 SiNALOA, Mazatlan (F. H. Lamb, no. 971) ; Colima, Mauzanillo 

 (Palmer, 1890, no. 971) ; Guerrero, Acapulco (Barclay fide Benth., 

 Palmer, 1891, no. 481); San Salvador, Conchagna (QErsted ^6?e 

 Benth.). Also in Ecuador and Peru. 



P. grandiflora, Klatt. Stem herbaceous, glabrous, branching ; 

 branches leafy even to the apex, monocephalous : leaves opposite, linear, 

 mucronate, 2 cm. long, 2 mm. wide, densely glandular-punctate, with 6 

 pairs of setse: peduncles terminal, 2\ cm. long, curving, angulate, almost 

 winged, with 2 median bracts : involucre campanulate, 1 cm. long, equally 

 broad, 40-flowered ; the 5 bracts broad-ovate, 6 mm. wide, many-striate, 

 keeled, densely ciliate : rays lanceolate, 5 mm. long, 1 \ mm. wide, red- 

 dish : pales 14, scabrous, unequal, yellowish: akenes elongate, G mm. 

 long, short-setose. — Klatt, Botanisch. Beibl. z. Leopoldina, 1895 (comp. 

 nov. Costaric), 6. — Costa Rica, " Vers la huche du Hato-Viejo, ver- 

 sant du Pacifique, leg. janv. 1893 " (Pittier. no. 7342). A species un- 

 known to us, the foregoing description, translated from Klatt, in many 

 ways suggesting P. arenaria, Benth. 



P. depressa. A depressed annual, forming mats sometimes 3 or 

 4 dm. across: stems villous, very branching : leaves linear-oblong, 1 to 

 2 cm. long, H to mm. wide, mucronate, ciliate, with 3 to 5 pairs of basal 

 setce, beneath densely punctate and with slightly villous midribs : heads 

 solitary on terminal and axillary filiform 3-4-bracteate peduncles about 

 2 cm. long : involucre companulafee, 4 or 5 mm. high, 3 or 4 mm. broad, 

 35-40-flowered ; the 5 unequal oblong obtuse bracts thin, ciliate and 

 minutely punctate : rays oblong, yellow, 3 mm. long : disk-pappus of 10 

 or 12 linear-subulate unequal setulose pales and 3 or 4 longer ones, 2 

 mm. long ; ray-pappus generally reduced to a short irregular crown of 

 more or less confluent pales : akenes 2 mm. long, short-setose. — Guer- 

 rero, very common in moist exposed places, Acapulco (Palmer, 1894, 

 no. 16). 



-1— -f— Stems erect : leaves crowded, filiform. 



P. bracteata, Watson. Perennial with a slender branching caudex : 

 stems smooth, angulate, 2 or 3 dm. high, densely leafy toward the base, 

 passing into many-bracteate long peduncles: leaves almost or quite fili- 



