



FLORA OF THE DISTRICT OF COLUMBIA. 129 



3. HABENARIA Willd. 



Lip not fringed nor deeply lobed; racemes narrow; flowers small and greenish. 

 Lip hastate, with a tubercle in the center at the base; spur slender, straight, 



1. H. flava. 



Lip 3-toothed at the apex, not tubercled at the base; spur clavate, curved. 



2. H. clavellata. 



Lip fringed or deeply lobed; racemes broad; flowers large and showy. 

 Lip fringed but not lobed. 

 Flowers orange-yellow. 

 Lip ovate, about 5 mm. long; spur about half as long as the ovary. 



3. H. cristata. 



Lip oblong, about 10 mm. long; spur longer than the ovary 4. H. ciliaris. 



Flowers white 5 - H. blephariglottis. 



Lip deeply 3-lobed. 



Flowers greenish whil e ; lobes of the lip lacerate-f ringed 6. H. lacera. 



Flowers violet-purple; lobes of the lip cut-toothed, not fringed. 



7. H. peramoena. 



1. Habenaria flava (L.) A. Gray. 



Moist meadows. June. Eastern U. S. (S. virescens Spreng.; Perularm flava 



Far well.) 



2. Habenaria clavellata (Michx.) Spreng. 



Bogs, usually in shade. July. Eastern U. S. (II. tridentatallook.;Gymnaden- 

 iopsis clavellata Rydb.) 



3. Habenaria cristata (Michx.) R. Br. 



Known from only one locality, a bog near Suitland. Southern states, north to N. J. 

 (Blephariglottis cristata Raf.) 



4. Habenaria ciliaris (L.) R. Br. Yellow fringed orchis. 

 Bogs, usually in open places. July-Aug. Eastern U. S. (Blephariglottis cilmns 



Rydb.) 

 A pale form has been found several times in the vicinity of Hyattsville. 



5. Habenaria blephariglottis (Willd.) Torr. White fringed orchis. 

 Bogs, usually with the last species. July-Aug. (Blephariglottis blephariglottis 



Rydb.) 



6. Habenaria lacera (Michx.) R. Br. Ragged fringed orchis. 

 Fairly common in damp meadows. June. Eastern IT. S. (Blephariglottis lacera 



Farwell.) 



7. Habenaria peramoena A. Gray. Purple orchis. 

 Ditches and wet meadows. July-Aug. N. J. to Mo. and Ala. (Blephariglottis 



peramoena Rydb.) 



Our handsomest orchid. 



4. POGONIA Juss. 



1. Pogonia ophioglossoides (L.) Ker. ^ SE pooonia. 



Bogs. June. Eastern U. S. 



Flowers occasionally almost white; fragrance delicate and delightful. 

 Pogonia divaricata (L.) R. Br. is listed by Brereton. 

 69289—19 9 



