ORCHIDACE.E. (ORCHIS FAMILY.) 503 



* * Flowers in one straight or spirallji tivisted ranh. 



•I- Stem hearing elongated leaves at and toward the base, which mosflij persist 

 during the flowering season. 



4. S. prSBCOX, Watson. Root of fleshy or tuberous-thickened fibres ; 

 stem 9' -2° liigh; lower and root-leaves linear or lance-linear (3-8' long, 2- 

 4" wide) gradually tapering to the base, the upper reduced to sheathing l)racts ; 

 spike linear, dense (2-5' long), usually much twisted, the axis, ovaries, etc., 

 downy-pubescent ; bracts ovate and gradually, or rhombic-ovate and ahruptlj^ 

 taper-pointed, surpassing the ovary, the margins broadly hyaline; perianth 3''^ 

 long ; lip ovate-oblong when outspread, with rather small callosities at base, 

 crisped at the rounded sliglitly recurved apex ; anther and beak of the stigma 

 very acute. (S. graminea, var. Walteri, Graij.) — Wet, grassy places, Mass. 

 to N. J. and Fla. 



I--*- Scape very slender, merelij bracted ; the leaves with a blade all in a cluster 

 at the ground, ovate or oblong, abruptly contracted into a petiole, commonly 

 withering away at or before flowering ; flowers small, and ichole plant gla- 

 brous or nearly so; bracts small, sharp-pointed, not longer than the capsule. 



5. S. gracilis, Bigelow. Roots clustered, tuberous-thickened; scape 8 -18' 

 high, bearing a slender many-flowered one-sided or twisted spike ; perianth 

 barely l|--2" long; lip oval when outspread, narrowly oblong in natural form, 

 thickish and green above with thin white margins, the recurved obtuse or acut- 

 ish apex wavy-crisped, the callosities at the base nipple-shaped. — Hilly woods 

 and sandy plains, common. July -Oct. 



6. S. simplex, Gray. Root a solitary oJilong or spindle-shaped tuber; no 

 leaves at flowering time ; scape 5-9' high, bearing a small narrow (rarely 1- 

 sid.ed) spike (1 -3' long) of very short flowers (perianth 1 - 1|" long) ; lip thin, 

 white, obovate-oblong , the apex eroded and crisped, the callosities at the base 

 slender. — Dry sandy soil, E. Mass. to N. J., Del., and Md. Aug., Sept. 



10. G O O D Y E R A, R. Br. Rattlesxake-Plantain. 



Lip sac-shaped, sessile, entire, and without callosities at base. Otherwise 

 as Spiranthes. — Root of thick fibres, from a somewhat fleshy creeping root- 

 stock, bearing a tuft of thickish petioled leaves, usually reticulated with white 

 veining. Scape, spike, and the greenish-white small flowers usually glandular- 

 downy. (Dedicated to John Goodyear, an early English botanist.) 



§ 1. Lip strongly saccate-inflated and with a short spreading or recurved tip ; 

 anther short, borne on a distinct filament attached to the back of the short 

 column, blunt; gland-hearing tip or beak of the stigma very short. 



1. Ge repens, R. Br. Small (5-8' high) and slender-; leaves ovate, 

 more or less white-reticulated (about I'long) ; flowers several, in a loose l-sided 

 spike : lip with an ovate recurved tip ; sepals ovate. — Woods, under ever- 

 greens, common northward and through the Alleghanies. July. (Eu.) 



2. G. pubescens, R. Br. Larger ; leaves strongly white-reticulated 

 scape 6-12' high, the numerous croivded flowers not one-sided; tip of the 

 rjlohular Up very short ; otherwise like the preceding, and too near to it. — 

 Rich woods, Newf. to Fla., west to Mich, and Minn. 



