SYNGENESIA SUPERFLUA. 



339 



9. SCABRA. 



C. foliis inferioribus 

 ovalibus, dentatisj pe- 

 tiolatis, caulinis corda- 



Lower leaves oval, 



toothed, on petioles, 

 stem leaves cordate, o 



to-byatis, . sessilibus, vate, sessile, all sea- 

 omnibus scabris punc- bious and dotted; stem 

 tatisqiie; caule divari- divaricate^ flowers ia 

 cato; capituiis panicu- panicles, 

 latis, E. I 



Pursh, 2. p. 531. Nutt. 2. p. 151. 

 Inula Punctata. Muhl. Cat. p. 76. 



Root perennial? Stem two to three feet high, branching from the base. 

 gl?ndularly hairy, and very scabrous. Lefl^esofthe root distinctly petio- 

 laM^with the petioles dilated at base, coarsely toothed; of the stem some- 

 what amplexicauk, acute, the veins all pellucid. Flowers in a compound, 

 terminal panicle. Inuolucrum many leaved, (nearly one hundred) imbri- 

 cate cyhndricalj leaves linear, acute, viscid, pubescent, with the margins 

 membranaceous. Plants of the ray about twenty, lanceolate, nerved: 

 style scarcely longer than the tube; seeds oblong, and excepting at the base 

 glabrous; exterior pappus a marginal cup, entire; the interior pappus w^t- 

 ing. Florets of the disk tubular, five-cleft, strongly nerved along the mar- 

 gins ; stamens scarcely longer than the corolla. Seed hispid, exterior pap- 

 pus composed of many membranaceous scales, the interior scabrous, red- 

 dish brown. Receptacle deeply celled. 



Grows on the sand ridges near the ocean, and in dry pastures. 

 Flowers October. 



The two preceding species differ in habit from this genus and the C. Sea- 

 bra very much, in the structure of the seed and pappus. If the double or 

 exterior pappus should be found to form permanent generic cMincViuns, 

 and to unite those species which in habit, symmetry and character Ugree, 

 this plant must be separated from this genus. It may be distinguished by 

 the following character : 



CALYCIUM. Involucrum Imbricatum, cylindricum. Jntherce h^si 



membranaceo 

 favosum- 



Semina radii glabra, cupula coronataj disci hirsuta, pappo duplici, 



tieceptacumm 



The first seven species of this genus, together with the C. falcata, form a 

 very natural group, though the two first are marked with strong peculiarities, 

 ifto two last differ in habit, and have also characteristic distinctions, which, 



with the increasing accuracy of the science, may cause them to be removed 

 from this genus. 



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