690 OeDbe 138.— ORCHIDAOE^. 



lip roundish-ovate, with a narrow, abrapt, recurved point ; column rounded and 



obscurely 2-toothed at apex; spike dense, with the fls. spirally arranged, pubes- 

 cent. — ^Woods, Can. and U. S., with its several Ivs. radical and singularly mottled 

 with white and dark green. St. 6 to 12' high. Lvs. 1 to 2' long, conlracted into 

 a short, winged petiole. Spike 2 to i' long. Perianth greenish, about 2" long, 

 nearly as wide. — Jn., Jl. 



i6. CALOPO'GOH, Brown. Grass Pink. (Gr. KaXog, beautiful, 

 Trwyuv, beard ; in allusion to tbe bearded lip.) Sepals and petals simi- 

 lar, distinct ; lip on the upper side of the flowers (the ovaiy not twisted 

 as in other Orchids), unguiculate bearded ; column free, winged at the 

 summit ; pollen angular. — Corm bearing a grass-like If., a naked soapc 

 with several showy fls. 



C. puloh^Uus Br. Lf. radical, linear-ensiform, veined ; scape few-flowered ; lip 

 croct, narrowed at base, with an expanded bordei- and a concave, crested disk. — 

 A beautiful plant, in swamps and damp meadows, XT. S. and Can. Scape slender, 

 10 to 20' high, with a long leaf (8 to 12' by J') sheathing its base. Fls. 3 to 8, 

 large, purple, remarkable for their apparently inverted position ; lip expanded at 

 apex, spatulate, crested with white, orange and purple olavate hairs, and on the 

 upper side of the flower, while the column is below 1 Jn., Jl. (Cymbidium 

 Willd.) 



17. POGO^NIA, Juss. (Gr. TTuyuv, beard ; in allusion to the bearded 

 lip.) Perianth irregular, sepals and petals distinct ; lip sessile or un- 

 guiculate, cucuUate, bearded inside; column wingless, elongated, free ; 

 pollinia 2, farinaceous. — Habit various. Lvs. 1 or more. Fls. purple. 



§ Sepals about equal, nnd similar to the petals, light purple. Lip scarcely lobod Nos. 1, 2 



§ Sypals much longer than, and unlike the j)otals, dark brown. Lip 3-lobed Nos. 3, 4 



1 P. ophioglossoides Br. Rt. fibrous ; Si. furnislted with an oval-lanceolate leaf 

 and a foliaceous bract near the single flower ; sep. and pet. about equal ; lip. fim- 

 briate. — An interesting plant, much taller than the bulbous Arethusa, found in 

 swamps and muddy shores. Can., N". Bng. to Car. and Ky. The stem is very 

 slender 9 — 16' high, with 2 remote leaves, the one placed about midway, 2 — 3' 

 long, lanceolate, acute, sheathing at the base ; the other (a bract) ranch smaller, 

 situated near the flower. Flower large, nodding, pale purple, lip long as petals 

 and sepals (J') June. (Arethusa L.) 



2 P. verticill^ta Nutt. l/vs. 5, lance-ovai verticillate ; fl. solitary, the 3 outer 

 petals very long, linear, inner ones nearly thrice shorter, lanceolate, obtuse ; lip 3- 

 lobed, the middle lobes undulate. — Swamps, Can. to Ga. (Mr. "Wm. Jones), common. 

 Stem 8 — 12' high, with a whorl of leaves near tho top and a flower 1 — 2' above it. 

 Leaves 1 J' long, -J as wide, abruptly acuminate. The flower is remarkable for 

 its sepals being abovo 2' long, very narrow, and of a greenish-brown color. Lip 

 crested in the middle. July. (Arethusa "Willd.) 



3 P. pendula Lindl. Theee-bieds. Et. tuberous; si. leafy, about i-flowered a.t 

 the top ; lvs. clasping, ovate, alternate ; fls. axillary nodding ; lip. entire, scabrous, 

 not bearded ; fr. pendulous. — ^A small, delicate plant, in swamps. Mid. and W. 

 and S. States. St. scarcely 6' high, slightly angled, with about 3 fls. which with 

 the ovary are 1' long. The fruit often resembles 3 little birds. Lvs. 3 to 6, 4 to 8" 

 long, purplish. Fls. light purple, tho segmpnts of the perianth equal, converging, 

 and rather longer than tho lip. Aug. (Triphora Nutt.) 



4 P. divario^ta E. Br. Z/vs. 2, one ofiliem in the middle o/ilie stem, lanceolate- 

 linear, subfalcate, the other terminal, .bract-like, at the base of the single, large, 

 flower ; sep. narrow, wide-spread, recurved at apex, one third longer than the lan- 

 ceolate, acuminate petals; lip spatulate, 3-lobed, middle lobe rounded, cuspidate; 

 lateral lobes somewhat involute. — A fine, showy plant, near 2f high, iu grassy 

 swamps, Va. to Fla. and La. L£ 2 to 4' by 3 to 5", rather oblong than lance- 

 shaped, tho bract scarce half as large. Petids 1' long, pink,- sep. 18", brownish- 

 purple. Lip green, with purple veins. Apr., May. 



i8. ARETHU'SA, Gronov. {Arethusa, a nymph of Diana, trans. 



