42 FAM. 45, 46. 



4. Pollen in waxy masses, ----------6 



5. Scapose herbs from corms, flowers in a terminal spike or raceme; — 



scape erect, bearing below the middle a single narrow leaf; lip 

 hinged, bearded on the surface. Low pine-land. 



Limodorum (Calopogon), Grass Pink 



L. pallidum (C. pallidus). Spike interrupted, 10-20 flowered; flowers white 

 tinged with purple; filaments on lip purplish. Early Summer. 



L. tuberosum (C. pulchellus). Spike not dense, 3-20 flowered; flowers pur- 

 ple; filaments on lip pink, yellow or orange. Summer. 



L. graminifolium (C. parvifiorus). Spike 3-7 flowered, flowers bright purple; 

 filaments on lip yellow. Spring. 



5. Caulescent herbs from slender roots, flowers 1-2 at the top of the 



stem; — stem erect, few-leaved; leaves basal and 1 or 2 on the 



stem; flowers nodding. In swamps. ----- Pogonia 



P. ophioglosscides. Perianth rose-colored, sepals and lateral petals of equal 



length; lip spatulate, bearded and crested. Spring. 

 P. divaricata. The purplish brown sepals longer than the pink-colored lateral 



petals; lip 5-lobed, merely crested, greenish veined with purple. Early 



Summer. 



6. Caulescent herbs with short corms; — low herbs with 1-2 leaves on the 



stem; small flowers in a terminal raceme, white or greenish; 

 sepals spreading; lateral petals very narrow; lip broad, cor- 

 date or sagittate at the base; pollinia 4, united by pairs. River- 

 hammock. - _ _ Achroanthes (Microstylis), Adder's Mouth 



A. unifolia (M. ophioglossoides) . Flowers in a short raceme, pedicels slender, 

 lip 3-toothed at the apex; a leaf near the middle of the stem. Summer. 



A. Floridana. With 2 basal leaves; raceme slender; lip entire at the apex. 

 6. Saprophytic herbs with coral-like branching roots; — scaly, sheathing 

 leaves; dull colored flowers in a terminal raceme; sepals and petals 

 nearly alike, connivent; lip clasping the 2-edged column; polli- 

 nia 4, a pair in each sac, Pine-land, - - Corallorhiza, Coral-root 



C. Wisteriana. Plant light or deep purple or brownish; lip broadly oval or obo- 

 vate, clawed, and notched at the apex; column strongly winged. Winter 

 or Spring. 



C. odontorhiza. Plant light or deep purple; lip obovate or suborbicular, claw- 

 less, and not notched at the apex; column narrowly winged. Summer. 



C. micrantha. Plant pale or greenish purple; lip oblong or oval. Summer and 

 Fall. 

 6. Epiphytes clinging to the bark of trees; — flowering stems simple or 

 branched, each terminated by a raceme or panicle; sepals and 

 petals nearly equal, spreading; lip 3-lobed; spur none. All but 

 one species in South-Florida; on trees in hammocks. 



Epidendrum, Tree-Orchis 



E. conopseum. Plants tufted, roots matted, leaves leathery and sheathing at 

 the base; perianth green tinged with purple. Summer. 



Spermatophyta. Dicotyledones. 



46. Saururaceae, Lizard' s-Tail Family. 



Caulescent herbs with alternate or sometimesbasal 

 leaves; flowers perfect, but instead of a perianth small 



