I 



/ 



SYNGENESIA NECESSARIA. 473 



Semina compressa, | Seeds compressed, 

 .apice subdentata, stylo I slightly toothed on the 

 persistente anstata, | summit, awned with 



the persistent style. 



1. Stolonifera? 



G. herbacea, pro- 1 Herbaceous, pro- 

 cumbens, repens, gla- cumbent, creeping, 



bra; loliis pmnatifidis, glabrous; leaves pin- 

 flonbus ad radicem natiiid; flowers sessile 

 sessihbus. | at the root. 



Nutt. 2. p. 134. » 



Hippia Stolonifera? Sp. pi. 3. p. 2383. Persoon, 2. p. 497. 



iJoof perhaps perennial, shooting out short runners (stolones) on all sides 

 just under the surface of the ground, which produce new plants: each plant 

 Dearing five to six radical leaves and one sessile capitulum in the centre of the 



^rJ^UA 'i ""^"' Pnnatifid, with the segments linear and sometimes 



toothed, somewhat succulent and sprinkled with soft cottony hairs, the peti- 

 ole-hke base of the leaves four to eight lines long. Involucrum twelve to 

 Sixteen leaved, m a simple series; leaflets oblong, rather obtuse, hairy. Ste- 

 iile Jlorets m the centre of the capitulum, corolla funnel shaped, very slen- 

 der, anthers closely united. Female Jlorets in the circumference, corolla 

 and stamens 0, germ dilated and woolly at the summit, margined. Stvle 

 Jong, incurved, slightly two-cleft. Receptacle naked. Seed inversely 

 wedge-shaped, crowned with tiie persistent style, winged, margin corrugate. 

 „ cT" ** '^^^V^^^^ to consider Gymnostyles as only a section of the 

 m.?c1\ r* The character of that genus, however, as given in Persoon, 

 must be reformed before It can include this plant. 



M;!^^rT' f *^f "^^ ^^iJ''^ **'''^- ^" Harleston's Greeri, Charleston. Mr. 

 Widdleton's, Ashley River. Mr. Pincknw's, Ashepoo. 



* lowers Febraary— May. 



PARTHENIUM. Gen. Pt. 1428. 



Tiwolucrum 5-phyl- | Imolucrum 5-leav- 

 *"m. Radii coroUulw \ ^d. Florets of the v^y 

 ramimae. Semina ob- very small. Seed oho. 

 ^ata. Pa;^;?w^nullus. vate. Pappus Q. Re- 

 ^eceptaculum palea- ceptacle chaffy, flat. 



ceum, planum. ' 



VOL, II. o^3 



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