SYNGENESIA ^QUALIS. 



313 



iiiteiioribus petaliform- 



Pappus p al e a 



ibus. 



ceus, squamis 



brevi 



the interior petal-sha 



ped. 

 scales 



Pappus cli afTy , 

 short, obtuse. 



bus, obtusis. Recep- Receptacle naked. 



taculum nudum. 



I 



I 



1. SCABIOS^US. 



H. candicanti-lanu 



Lanuginous 



9 



hairy; 



ginosus; fohis profunde | leaves deeply pinnati 

 pinnatifidi ' 



laciniis li- fid 



oblon 

 tatis; florib 

 bosis. 



subden 

 corym 



segments 



linear 



9 



oblong, slightly tooth 



ed; flowers in corymbs. 



Mich. 2. p. 104. Pursh, 2. p. 519. Nutt. 2. p. 139- 



Root perennial. Stem two to three feet high, furrowed, angular, tomen- 

 tose. Leaves akernate, long, slender, irregularly pinnatifid, the segments 

 remote, scarcely confluent, linear, sinuate-dentate, the upper ones more dis- 

 tinctly pinnatifid, with the segments entire, all tomentose and hairy under- 

 neath Flowers in small terminal corymbs. Involucrum many leaved, 

 containing many flowers, leaflets obovate, nearly round, tomentose on th,e 

 back, membranaceous, white, the interior large and expanding, giving the 

 flowers a radiated appearance. Florets tubular, whitish, externally pubes- 

 cent, border five-cleft, with the segments revolute. Stamens extended, with 

 their projecting summits very conspicuous. Style longer than the stanieiis. 

 Stigmasxwo, revolute. Seed conical, a little hairy. Fappus composed of 

 many short, obtuse, denticulate, membranaceous leaves. .^^, ^. . ^ . 

 Grows around ponds in the high pine barrens m the middle districts of 

 Carolina and Georgia. I believe very rare. Scnven and Burke counties, 



Georgia. 

 Flowers in April. 



t 



POLYPTERIS- 



Nutt. 



Involucrum 



poly 



Involucrum many 



hyllmn, foliolis ovali 



leaved, leaves 



oval. 



„.-.. Pappus p^leR' \ Pappus chaffy, many 

 ceus, polyphyllus, foli- leaved, the chaff broad- 

 oils lato-subulatis, cus- subulate, cuspidate, n- 



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VOL. II. 



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2 



