PoGONIA. 



QRCHIDACE^E. 



281 



2. PoGONIA VERTIC1LLATA, Nutt. 



Verticillate Pogonia. 



Scape with a whorl of leaves at the summit, 1 - 2-flowered ; sepals very long and lanceo- 

 late-linear ; petals small, elliptical ; lip 3-lobed ; the middle lobe dilated and undulate. — 

 Nutt. gen. 2. p. 192 ; Bart. fl. N. Am. 2. t. 67 ; Ell. sk. 2. p. 497 ; Torr. compend. p. 321 ; 

 Beck, hot. p. 345 ; Darlingt. fl. Cest. p. 503. Arethusa verticillata, Willd. sp. 4. p. 81 ; 

 Pursh, fl. 2. p. 591 ; Bigel. fl. Bost. p. 325. A. medeoloides, Pursh, I. c. A. stellata, 

 Muhl. cat. p. 84 ? 



Root consisting of long thick succulent fibres. Scape 8-12 inches high, dull purplish, 

 quite naked except 2-3 lanceolate scales at the base, and the verticillate leaves at the 

 summit. Leaves oval or clliptical-obovate, 1-2 inches long, sessile, abruptly pointed at 

 each end. Flowers mostly solitary (rarely 2 or 3 on a scape), pedunculate, inclined or some- 

 what nodding. Petals varying from three-fourths of an inch to 2 inches in length, and about 

 2 lines wide, of a dull greenish brown. Petals much shorter than the sepals and paler, mostly 

 obtuse, but sometimes acute. Lip shorter than the petals, crested along the middle. Column 

 thick and clavate : anther large and horizontal. Pollen-masses 2, oblong, with a longitudinal 

 groove on the inside. 



Swamps and moist woods : rare. Oneida county (Dr. Knieskern) ; Eaton, Madison county 

 (Dr. Bradley). Fl. May - June. 



3. Pogonia pendula, Lindl. Nodding Pogonia. 



Stem about 3-flowered near the summit ; leaves ovate (small), distant, clasping ; flowers 

 axillary, pendulous ; lip unguiculate and somewhat 3-lobed, not crested. — Lindl. in hot. reg. 

 t. 908 ; Iiook.fl. Bor.-Am. 2. p. 202. Arethusa parviflora, Michx.fi. 2. p. 160. A. pendula, 

 Willd. sp. 4. p. 82; Pursh, fl. 2. p. 590. " A. trianthophorus, Swartz, act. Holm. 1800, 

 p. 230." Triphora pendula, Nutt. gen. 2. p. 193; Ell. sk. 2. p. 498; Torr. compend. 

 p. 321 ; Beck, hot. p. 346 ; Darlingt. fl. Cest. p. 504. 



Pseudobulbs oblong, buried deep in the ground. Stems often growing in clusters, 3-8 

 inches high, tender and somewhat succulent. Leaves 3-5, about half an inch long, the 

 lowest obtuse, the others rather acute. Flowers 1-4, pale purple, on axillary pedicels, at 

 first somewhat erect, but soon pendulous. Sepals and petals nearly equal, connivent. Lip 

 cucullate, about as long as the petals, rough but not crested ; the middle lobe oblong. Column 

 spatulate, cucullate. Capsules elliptical, half an inch long. 



Fertile woods, in black vegetable mould : rare. Fl. August - September. 



[Flora — Vol. 2.] 



36 



