GENUS 17. 



ORCHID FAMILY. 



i. Limodorum tuberosum L. Grass-pink. 

 Calopogon. Fig. 1387. 



Limodorum tuberosum L. Sp. PI. 950. 1753- 

 Cymbidium pulchellum Willd. Sp. PI. 4: 105. 1805. 

 Calopogon pulchellum R. Br. in Ait. Hort. Kew. Ed. 2, 

 5: 204. 1813. 



Scape slender, naked, i-i$ high. Leaf linear- 

 lanceolate, S'-ia' long, 3"-io" wide, sheathing, with 

 several scales below it; spike 4t'-\s' long, 3~i5-flow- 

 ered; flowers about i' long, purplish pink, subtended 

 by small acute bracts ; sepals obliquely ovate-lanceo- 

 late, acute, about 10" long; petals similar; column 

 incurved; anther-sacs parallel, attached by a slender 

 thread to the back of the column; lip as long as the 

 column, broadly triangular at the apex, crested along 

 the face with yellow, orange and rose-colored hairs; 

 capsule oblong, nearly erect. 



In bogs and meadows, Newfoundland to Ontario and 

 Minnesota, south to Florida and Missouri. Bearded- 

 pink. Swamp-pink. June-July. 



18. SERAPIAS L. Sp. PI. 949. 1753. 



[EPIPACTIS (Hall.) Zinn, Cat. PI. Hort. Goett. 85. 1757.] 



Tall stout herbs with fibrous roots and simple leafy stems. Leaves ovate or lanceolate, 

 plicate, clasping. Flowers leafy-bracted, in terminal racemes. Sepals and petals all separate. 

 Spur none. Lip free, sessile, broad, concave below, constricted near the middle, the upper 

 portion dilated and petal-like. Column short, erect. Anther operculate, borne on the margin 

 of the clinandrium, erect, ovate or semiglobose, its sacs contiguous. Pollinia 2-parted, 

 granulose, becoming attached to the glandular beak of the stigma. Capsule oblong, beakless. 

 [Named for Serapis, an Egyptian deity.] 



About 10 species, widely distributed. Besides the following typical species, another occurs in 

 the western United States. 



i. Serapias Helleborine L. Helleborine. 

 Bastard Hellebore. Fig. 1388. 



Serapias Helleborine L. Sp. PI. 949. 1753. 



Serapias viridiflora Hoffm. Deutsch. Fl. a: 182. 1804. 



Epipactis latifolia var. viridiflora Irm. Linnaea 16: 451. 



1842. 

 Epipactis viridiflora Reichb. Fl. Exc. 134. 1830. 



Stem i-2 high, glabrous below, pubescent above. 

 Leaves ovate or lanceolate, obtuse or acute, i|'-3' 

 long, 9"-!$' wide; flowers greenish yellow to purple; 

 pedicels 2"-3" long ; sepals 4"-s" long, lanceolate ; 

 petals narrower; lip expanded into a slightly undulate 

 apex, tapering to a point ; bracts lanceolate, longer 

 than the flowers. 



Quebec and Ontario to Massachusetts and Pennsyl- 

 vania. Local ; probably introduced. Widely distributed 

 in Europe. July-Aug. 



19. IBIDIUM Salisb. Trans. Hort. Soc. 



London i: 291. 1812. 



[GYROSTACHYS Pers. Syn. 2: 511, as subgenus. 1807.] 



[SPIRANTHES L. C. Richard, Mem. Mus. Paris 4: 



42. 1818.] 



Erect herbs, with fleshy-fibrous or tuberous roots and slender stems or scapes, leaf- 

 bearing below or at the base. Flowers small, spurless, spiked, l-3-rowed, the spikes more or 

 less twisted. Sepals free, or more or less coherent at the top, or united with petals into a 

 galea. Lip sessile or clawed, concave, erect, embracing the column and often adherent to 

 it, spreading and crisped, or rarely lobed or toothed at the apex, bearing minute callosities 

 at the base. Column arched below, obliquely attached to the top of the ovary. Anther with- 

 out a lid, borne on the back of the column, erect. Stigma ovate, prolonged into an acuminate 

 beak, at length bifid, covering the anther and stigmatic only underneath. Pollina 2, I in each 

 sac, powdery. Capsule ovoid or oblong, erect. [The anther has a fancied resemblance to the 

 head of an Ibis.] 



