930 ADDENDA. orchidaceae. 



Tribus OPHRYDEA E. 



1510. PKKILAHIA Lindl. 

 (LO. 281. - Wlprs. Ann. III. 580.) 



1. *P. FUSCESCENS: huc Orchis flava L. fid. Gray , Manual p. 471. et Platanthera flava 

 Gray 1. c. 



1520. PLATAWTHEBA Rich. 



(LO. 284. — Wlprs. Ann. I. 796. III. 581 ) 



Filicornes. 



i. PL. LACERA Gray, Manual p. 472.— Foliis oblongis seu lanceolatis; racerao laxifloro, 

 plurifloro ; pcrigonii phyllis internis oblongo-linearibus integris ; labelli laciniis tribus 

 anguslis, in paucas partes capillares divisis; calcari ovarium aequante. — Orchis psy- 

 codes Miihlb. nec L. — Orchis lacera Michx. — Vulgaris in Nova Anglia. — Bracteae 

 breviores seu longiores floribus flavo-viridibus. 



2. PL. PSYCODES Gray I. c. p. 472. — Foliis oblongis, summis in bracteas lineari-lan- 

 ceolatas abeuutibus; racemo cylindraceo, dease multifloro; phyllis perigonii externis 

 rotundo-ovalibus obtusis; phyllis lateralibus internis obovato-spatulatis, superne den- 

 ticulaiis; labelli divisionibus late cuneatis, in multas cilias partitis. — Orchis psycodes 

 L. — 0. limbriata Pursh. — 0. incisa Muhlenb. — 0. fissa Miihlenb. in Willd. 



3. PL. PERAMOENA Gray 1. c. p. 473. — Foliis inferioribus oblongo-ovatis, superioribus 



lanceolatis; spica oblonga seu cylindracea densiflora; phyl'.js perigonii externis rotundo- 

 ovatis , lateralibus internis rotundo-obovatis : labelli magni divisionibus late cuneatis, 

 irregulariter eroso - dentatis , lateralibus cuneatis, media biloba. — P. fissa Lindl. — 

 0. fissa Pursh nec Miihlb. 



Crassicornes. 



4. *PL. VIRIDIS: huc Platanthera bracteata Torr. in Gray, Manual p. 470. 



