ft90 Orobe 138.— ORCHIDACE.^ 



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

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

 oent. — Woods, Can. and XJ. S., with its several Ivs. radical and singularly mottled 

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

 a short, winged petiole. Spike 2 to 4' long. Perianth greenish, about 2 " long, 

 ■ nearly aa wide. — Jn., Jl. 



16. CALOPO'GON, Brown. Grass Pink. (Gr. KaXo^, beautiful, 

 TTGjywi', beard ; in allusion to the bearded lip.) Sepals and petals simi- 

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

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

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

 with several showy fls. 



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

 erect, narrowed at base, with an expanded border and a concave, crested disk. — 

 A beautiful plant, in swamps and damp meadows, U. 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, JusR. (Gr. Txuywv, beard ; in allusion to the boarded 

 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 cqnal, and similar to the petals, liglit purplo. Lip scarcely lobed Nob- 1, 2 



S Sei)iils mucli longer than, and unlike tiic petals, dark brown. Lip t)-lobcd Nos. 8, 4 



1 P. ophioglossoideB Br. Rt. fibrous ; Si furnished wWi an ovo.l-lanceolaie leaf 

 and a foliaoeous 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., M". Eng. 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) much smaller, 

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

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



2 P. verticillata Nutt. Lvs. 5, lance-oval vcrticillate ; fl. solitary, the 3 outer 

 petals very long, linear, inner ones nearly thrice slwrier, 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 the top and a flower 1 — 2' above it. 

 Leaves 1 V long, ^ as wide, abruptly acuminate. The flower is remarkable for 

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

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



3 P. pendula Lindl. TiiREE-iilEDS. Et. tuberous; st. leafy, ahi/ut A-flowered at 

 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 G, 4 to 8" 

 long, purpUsh. Fls. light purple, the segments of the perianth equal, converging, 

 and ratlier longer than the lip. Aug. (Triphora Nutt.) 



4 P. divariodta E. Br. Lvs. 2, one of them in the middle of the stem, lanceolate- 

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

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

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

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

 swamps, V;i. to Fla. and La. Lf. 2 to 4' by 3 to 5", rather oblong than lanoo- 

 slmped, the bract scarce half as large. Petals 1' long, pink, sep. 18", browmsb- 

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



* 18. ARETHU^SA, Gronov. (Arethtisa, a nymph of Diana, trans. 



