22 CHLORIS BOREALI-AMERICANA. 



obsoletis, quandoque alternis ; inflorescentia centrifuga, 

 floribus terminalibus axillaribusque solitariis tribusve, 

 ad apicem pedunculi brevis inter bracteas foliiformes 

 sessilibus. Corolla albida, saepe lilacino vel purpureo 

 tincta. 



O. ViRGiNicA, Linn. Spec. 2. p. 632 {Gronov. Fl. 

 Virff., ed. 2. p. 95) ; Nutt. Gen. 1. p. 103 ; Ell 

 Sk. 2. p. 134 ; Darling-t. Fl. Cest., ed. 1. p. 21, 

 t. 2 ; Barton, Fl. N. Amer. 3. t. 90. 



Obularia, Linn. Hort. Cliff., p. 323. 



Orobanche Virginiana, radice coralloide, summo caule foliis subrotundis. 



Moris. Hist., 3. p. 504, t. 16,/. 23. 

 Orobanche Virginiana, radice fibrosa, etc., Pluk. Aim., I. 209, f. 6. 

 Anonymos humilis, Aprili florens, floribus pallida rubenlibus, etc., Clayt. Fl. 



Virg., I. c. 

 Schultzia obolarioides, Raf. in N. Y. Med. Repos., 2. hex. 5. p. 350 > 



Hab. In solo pingui sylvarum Nova? Ceesareaj, Penn- 

 sylvania, Ohionis, Virginise, usque ad Carolinam Aus- 

 tralem et Texas, rarius ; primo vere florens. * 



This plant has been several times figured, but never ^vith the 

 requisite analyses. On this account, and because its remarkable 

 peculiarities have remained unnoticed, and its place in the natural 

 system doubtful, I am induced to attempt its illustration. 



Linnaeus founded the genus upon specimens sent from Virginia 

 by Clayton to Gronovius, transferring to it the name formerly pro- 

 posed by Siegesbeck for Linnaea.* He did not characterize it well 



* " Obularia dicta fuit ob convenientiam foliorum cum figura obulorum, preeser- 

 tini Ruthenicorum." Litm. Hort. Cliff., p. 323. 



