182 PENTANDRIA. DTGYNIA, 



compressed, surrounded with an alated margin, 

 striated, strise 5 on each seed^ intervals ele- 

 vated, lined,' commissure ilat. 



Involucrum few-leaved, very short, rarely 1 to 5-leaved; 

 involacell main-leuved, shorter; flowers mostly yellow. 



Species. 1. P. *ternatiiin. Leaves all ternate, upon 

 very long- common petioles; partial leaves entire, long, 

 linear, acute, and attenuated below; involucrum nearly 

 wantinjj; involucell very short, 5 or 6-leaved;. fruit oblong- 

 clliptic. 



Descript. Perennial. Fvery where smooth. St^m 3 

 feet high, striate and slender. Leaves very ^&\y, 5 or 6; 

 peduncle of the lowest near 2 feet long! dividing above 

 into 3 linear leaves, either petioluted orfiliformly attenu- 

 ated downwards, from 4 to 6 or 8 inches long, perfectly 

 ^ entire, and scarcely 3 lines wide. Umbells 1 or 2, termi- 

 ~ nal; involucrum none, or 1 or 2 minute leaves, radii elon- 

 gated, 6 to 9. Segments of the involucell subulate, 2 or 



lines long; pedicells filiform more than an inch. Flow- 



.crs ? Calix mari^'inal, entire, or none. Styles short, 



reflected; fungous base elevated. Mature seed oblong- 

 elliptic, large as that of a parsnip, flatly compressed, but 

 convexly incurved, surrounded with a thick, alated fun- 

 gous white margin, continued internally entirely over the 

 commissure. Seed thin, longitudinally scored with 5 

 e(j;uidis>tant paler lines, and 5 dark striated intervals. 



Hab. On the bushy margins of swamps, in the pine- 

 forests of North and South Carolina. I have not seen the 

 flower. 



Of this genus there are in Europe about 4 species, 2 at 

 the Cape of Good Hope, 1 in Japan, 1 in the Canary islands, 



1 in Crete, and a heteromorphous species in New Zea* 

 land. 



266. FERUIa. X. 



Caliac: entire, or minute. Petals oblong, s-ub- 

 equal. Fruit suboval, dorsally compressed, 

 flat and mai ginated. Seeds marked with 3 dor- 

 sal lines; ** intervals and commissure striate." 

 Sp. — Universal involucrum caducous^ involucell 

 many-leaved. 



stems for the most part very tall; umbell and umbellet 

 globose, many-ray<'d, many lateral umbells growing- from 

 one terminal peduncle; leaves compjicately pseudo-pinnate- 



