330 ORDER 137. ORCIIIDACE^E. 



5 S. gramiiiea. Liudl. Lvs. below lancc-liucar to linear, the cauliue mere sheaths; 



spike deiisc, much twit-ted ; flowers white, 35", pubescent, scarcely ringent ; lip 

 oblong-ovate, crisped, obtuse. Wet meadows. June Aug. (S. tortilis C-B.) 



6 S. "brevifolia Chapm. Lowest leaves elliptical, evanescent, cauline bract-like ; 



flowery 5 15, in a nearly straight row, ringent, 3 4" ; lip entire. S. 



7 S. gracills Bigel. Lvs. all radical, ovate to oblong, fugacious; scape very slender, 



818', with a few bracts ; flowers y 4", in a nearly straight row, pure white ; root 

 fasciculate; plant glabrous. Woods : common. July, Aug. 



8 S. simplex Gr. Lvs. all radical, fugacious ; scape 59', flowers very small (12") 



in a trnn i-iueu e^Ike ; up obovate-oblong. Dry, N. J. (Porter), and S. 



13. GOODYERA, Br. RATTLESNAKE PLANTAIN. Spike and perianth 

 as in Spiranthes. Lip sessile, concave or sack-like or even spur-like at 

 base, contracted at the end to a reflexed, channelled point. ?.( Root-stock 

 creeping, branching. Leaves ovate, on sheathing petioles. 



* Leaves radical, generally netted with white veins. Lip not spurred Nos. 1, 2 



* Leaves cauline, uniformly green. Lip spurred at the base behind No. 3 



1 G. Menzicsii Lindl. Lip concave at base, gradually narrowed and folded at apex ; 



leaves elliptic-ovate ; scape 912' ; spike loose-flc-wercd ; flowers pubescent (as are 

 Nos. 2 and 3), ftuberect. Woods, N. Y. to Mieh. (Dr. Leicly) and Oreg. ! July, Aug. 



2 G. repens Br. Lip saccate-inflated at base ; leaves ovate, beautifully netted; scape 



G 12' ; flowers ovoid, nodding, in 1 row, which is more or less spiral : perianth green- 

 ish, about 2" long and nearly as wide. Woods. June, July. (G. pubescens Br.) 



3 G. quercicola Lindl. Rooting on the bark of Oaks, &c. ; stem leafy ; Ivs. lance- 



ovate, thin ; spike glabrous, dense, 620" ; sheaths and bracts membranous ; lip 

 ovate at apex, the spur pouch-like, half as long as the ovary. Flu. to La. G 12'. 



14. PONTHIEVA, Br. Lip on the upper or inner side, ovate, spread- 

 ing, and with the other petals inserted into the middle of the column. 

 Anthers with 4 pollinia. Otherwise like Spirauthes. 



P. glaiidulosa Br. Lvs. radical, oblong-oval ; root fasciculate ; scape If, bracted, 

 with a spike of many greenish pubescent fls. Woods, S. Sept., Oct. (Crauichis N.) 



15. CALOFOGON, Br. GKASS PINK. Sepals and petals similar, dis- 

 tinct. Lip on the upper (inner) side (the ovary not twisted), unguiculate, 

 bearded. Column free, winged at the summit, U Conn bearing a grass- 

 like leaf, and a scape with several showy flowers. 



C. pulcliellus Br. Leaf linear, 8 12' by 6", veined ; fls. 3 8, large, purple; lip spat 

 ulatc, crested with colored hairs, erect over the column. Wet meadows. June, July. 



16. POGONIA, Juss. Perianth irregular, its pieces distinct. Lip ses- 

 sile or unguiculate, hooded, bearded inside. Column wingless, free. Anth. 

 terminal, lid-form, with 2 pollinia. y 



Sepals about equal, and similar to the petals, light purple. Lip scarcely lobed..Nos. 1, 2 

 Sepals much longer than, and unlike the petals', dark brown. Lip 3-lobed . .Nos. 3, 4 



1 P. opliloglossoides N. Root fibrous ; stem !) 16', with an oval-lanceolate leaf 



near the middle, and a leaf-like bract near the single large pale-purple flower; lip 

 crested and fringed, as long as the sepals and petals. Swamps. June, July. 



2 P. peiidula Lindl. Three-bird*. Hoot tuberous ; stem 48', with 4 8 small scat- 



tered leaves and 3 (14) drooping bird-like flowers 1' long. Woods : rare. August. 



3 P. divaricata Br. Stem 1 2f, erect, with 2 linear-oblong Ivs. and 1 terminal large 



flower; sepals linear, recurved at apex, H' long; petals lanceolate, pink-colored, 

 acuminate, 1', lip a little longer. Swamps, Del. to Fla. April, May. 



