514 GYXAXDIUA IIEXAXDKIA 



umn r trianguIar-ob!ong, obtuse. Beck, Bot. p. 351. Icox, Bart. Am 

 3, tab. 74. 



Pubesckxt CtPRiPEDiux. PWjri — NonVs Ark. Mocasin flower. 

 Root perennial, with very numerous coarse fibres. Stem I to near 2 feet high 

 simple, often flexmse, striate, pubescent, leaiy. Leaves alternate, 3 to G inches 

 lung, and 1 to 3 inches wide, varying from elliptic to ovate and elliptic-lanceolate 

 acuminate, striate-ncrved, pubescent, contracted at base, sessile and sheathing. 

 Flower mostly solitary and terminal, wLh a foliaceous bract at base, Sometimes a 

 second one from the axil of the penultimate leaf. Segments of the perianth appa. 

 rently 4, green, with purple stains,- the 2 outer lateral ones cohering nearly to 

 the apex, and constituting one bifid segment on the lower side of the flower —the 

 inner lateral segments longer, much narrower, undulate, or spirally curled ; Up 

 yellow, large (an inch to an inch and half long), inflated and saccate ; petaloid 

 ajtpendageof \he column ovate-oblong, rather obtuse, subcordatc or sagittate at 

 base. Capsule oblong, tapering at each end, recurved, pubescent, pedunculate. 

 Hub Rich, moist woodlands: frequent. Fl. May. Fr. August. 



2. C. acaulk, Ait. Scape leafless, 1-flowcretl ; radical leaves 2, ellip- 

 tic-oblong; segments of the perianth oblong-lanceolate; lip longer 

 than the perianth-segments, with a fissure in front ; appendage of the 

 column roundish-rhomboid, acuminate, deflected. Beck, Bot. p. 352. 

 C humile. Willd. Sp. 4. p. 144. Pevs. Syn. 2, p. 525. Pur A, 

 Am. 2. p. 595. Ait. Kew. 5. p. 221. jYutt. Gen. 2. p. 199. Bart. 

 Phil. 2. p. 145. Ell. Sk. 2. p. 509. Bart. Am. 3. /;. 35 (Icon, tab. 

 83.). Florid. Cestr. p. 95. LindL Ency. p. 766. 

 Stemles8 Ctpripediot. Vulgo — Lady's Slipper. 



R&ot perennial, coarsely fibrous. Leaves 2, opposite, near the base of the scape, 

 3 to 6 inches long, and 1 to 3 or 3 and a half inches wide, varying from oval to 

 elliptic-lanceolate, mostly acute, nerved, pubescent, narrowed at base, sessile and 

 sheathing, at first rather erect, finally spreading. Scape 9 to 12 inches high, stri- 

 ate, pubescent, with 2 or 3 membranous sheaths at base, below the leaves. F/otcer 

 solitary, large, terminal, with a foliaceous ovate-lanceolate bract at base. Seg- 

 ments of the perianth 4 (the outer lateral ones being completely united, and form 

 ing one segmenton the lower side of the flower), lanceolate, or elliptic-lanceolate* 

 pubescent, yellowish-green, stained and spotted with purple, mostly shorter than 

 the lip; lip large (an inch and half to 2 inches long), purple, and veined with 

 deeper purple, inflated, with a longitudinal fissure in front ; petaloid appendage 

 of the column broad, roundish-rhomboid, acuminate, deflected, keeled on the inside. 

 Capsule large (an inch and half long, and 2 thirds of an inch in diameter), ellipl 

 tic-oblong, somewhat recurved, pubescent. 



flab. Weodlands; Great Valley hills: not very common. Fl. May. Fr. Aug. 



Obs. This occurs frequently on the North Valley hill ; but is rare elsewhere, 

 in this County. Kour other species, of this singular and handsome genus, are 

 enumerated in the U. States. 



Order 3. Hexandria. 



412. ARISTOLOCHIA. L. Mitt. Gen. 723. 

 [A Greek name ; having reference to the medical virtues of the plant.] 



Perianth tubular, ventricose at base, the limb dilated, ligulatc, or exten- 

 ded to * lip on the lower side. Anthers subsessile, inserted on th* 



