ORCHIDACEAB 313 



fPollinia 4. 

 423. ARETIIITSA, Gronoviut. 



[Poetically named from Arethusa, a nymph of Diana.] 



flowers somewhat ringent, the sepals and petals nearly alike, 

 united below, ascending and arching, over the column. Lip dilated, 

 recurved-spreading towards the summit, bearded inside. Column 

 adherent to the lip below, dilated and petal-like at apex. Anther 

 of 2 approximate cells; pollinia 2 in each cell. Root fibrous, bear- 

 ing a scape with a solid globose bulb at base, and a single large pur- 

 ple flower at summit ; leaves mostly none, but mere loose sheaths. 



1. A. Inill> s;i. L. Upper sheath of the scape sometimes pro- 

 ducing a spatulate-linear leaf. 

 BULBOUS AEETHUSA. 



Scape. 3 or 4 to 9 inches high, striate, bearing 3 or 4 loosely sheathing scales, a 

 leaf sometimes protruding from the upper sheath. Flower mostly solitary, an 

 inch or more in length, with 2 unequal bracts at base. 

 Hob. Sphagnous swamps ; Great Valley : rare. Fl. May. Fr. 



Obs. This little Beauty is very rare, with us ; but quite abundant 

 in New Jersey, especially at Quaker Bridge, 

 ft Pollinia 2. 



424. POGCraiA, Jussieu. 



[Gr. Pogon, a beard ; from the bearded lip of the original species.] 

 Sepals and petals distinct. Lip beard-crested, or 3-lobed and not 

 bearded. Column free, elongated, clavate, not winged. Anther 

 stipitate ; pollinia 1 in each cell. Root fibrous, or sometimes tuber- 

 iferous ; scape, or stem, 1- to 5-leaved ; flowers pale purple, or 

 dingy greenish-brown. 



f Sepals and petals nearly equal and alike -pale purple, or pink. 



1. P. OplliOglOOides, Nultall. Root coarsely fibrous; scape 

 1 -flowered, with a lance-ovate leaf near the middle, and a bract 

 near the flower ; lip crested and fringed. 

 OPHIOGLOSSUM-LIKE POGONIA. 



Scape 9 to 15 inches high, slender. Leaf 1 to 4 inches long, sometimes, though 

 rarely, a solitary oblanceolate leaf, 3 or 4 inches in length, at the base of the 

 Bcape. Flower mostly solitary, rather large, pale purple, or pink. Capsule elliptic- 

 oblong. 

 Hab. Swamps, among the slaty hills : not very common. Fl. June. Fr. Aug. 



2. I", pendula, Lindley. Root bearing oblong tubers ; stem 

 mostly with 3 or 4 alternate ovate clasping leaves, and as many 

 axillary pedunculate nodding flowers ; lip not crested, 3-lobed. 

 Triphora pendula. Nutt. $ FL Cestr. ed. 2. p. 504. 

 PENDULOUS POGONIA. 



Tubers succulent, cylindric-oblong, often an inch In length, <$fem 3 to 6 inches 

 high, simple (frequently growing in clusters), slightly angled by the decurrent 

 leaves, fleshy, generally purplish. Leaves 3 to 5 or 7 in number, and % to % of an 

 inch in length. Flowers few (1 to 3 or 4), generally pale violetrpurple, with tinges 

 of green rarely milk-white ; lip spatulate, a little rough, but not crested; pedun- 

 k* 1/3 to K an inch lon i- Odumn spatulate. Captule obo void-oblong, acuminate- 

 Hab. Rich, rocky woodlands : frequent. Fl. Aug. Fr. Octo. 



