346 MONOCOTYLEDONOUS PLANTS. 



HAB. Roots of trees. N. Y. to Car. July Sept. l+.Rool 

 coralloid, much branched. Scape a foot high, with 3 4-sheaths. 

 Raceme with many-flowers which are purplish, with the lip 

 white and spotted ; spur very distinct, yellowish. 



7. APLECTRUM. Nutt. 



Lip unguiculate, not produced at the base. Anther situated 

 below the summit of the column. Pollinia 4, oblique, lenticu- 

 lar. Gynandria. Monandria. 



A.. hiemaUs NutL : leaf solitary, ovate, striate ; lip trifid, obtuse, 

 with the palate ridged ; central lobe rounded, crenulate. Cymbidium 

 hyemale Wtild. Pursh. 



HAB. Shady woods. Can. . to Flor. May, June. 11. Root 

 bulbous. Scape a foot high, sheathed. 'Flowers brownish, at 

 length pendulous. Lip dilated at the end and trifid. 



8. ARETHUSA. Linn. 



Lip united at base with the column, cucullate at the end, 

 crested internally ; 5 segments of the perianth united at base. 

 Pollen angular. Gynandria. Monandria. 



A. bulbosa Linn. : leafless ; root bulbous ; scape sheathed, 1-flow- 

 ered. 



HAB. Sphagnous swamps. Can. to Car. May, June. If. 

 Stem 6 10 inches high, the lower part with 3 or 4 sheaths. 

 Flowers 1, rarely 2, terminal, large, purple. Lip curled, cre- 

 nate, bearded in the middle. 



9. TRIPHORA. Nutt. 



Lap unguiculate, cucullate ; 5 segments of the perianth 

 distinct, equal and connivent, without glands. Column spathu- 

 late, complanate and apterous. Pollen farinaceous. 



Gynandria. Monandria. 



T. pendula Nutt. : root tuberous ; stem leafy, about 3-flowered at the 

 summit ; leaves ovate, alternate ; flowers pedunculate ; peduncles at 

 length recurved. Arethusa pendula Wtlld. Pogonia pendvla Lind. 



HAB. Roots of trees. N. Y. to Geor. W. to Ky. Sept. U- 

 Stems often in clusters, a span high, angular. Leaves 6 or 7, 

 remote, very short, clasping, ovate and acute. Flowers 3 or 4, 

 pale purple, on axillary and terminal peduncles. 



** Pollen adhering in granules, which finally become waxy 

 and are indefinite in number. 



10. ORCHIS. Linn. 

 Periantii ringent. Lip with a spur on the under side at 



