MONOCOTYLEDONOUS OR ENDOGENOUS PLANTS. 537 



SYNOPSIS. 



Anther solitary, Jlxed to the apex of the column like a lid, deciduous. 



Tribe I. Malaxideae. FoUe?i in smooth waxy 

 masses, without staliis or connecting tissue. Boots tuber- 

 ous. 



* stems leaf!/. 



Lip cordate or sagittate. Column minutely 2-toothed at the apex Mtcrosttlis. 



— entire. Column elongated, incurved, margined at the apex Liparis. 



** Stems sheathed. 

 Spur of the lip short and adnate to the ovary. Root branching, toothed. 



CORALLORHIZA. 



Tribe II. Neottiese. Anther attached to the back 

 of the column, parallel with the stigma, the cells approxi- 

 mate. Pollen powdery. 



* Pollen-masses 2. 



Lip nearly entire, clasping the column, obtuse Spiranthes. 



— Z-deft. Stem with a pair of ovate opjx)site leaves Listbra. 



MICROSTYLIS, Nutt. Adder's Mouth. 



Sepals oblong, spreading ; petals filiform ; lip cordate or 

 sagittate, entire or nearly so, sessile; column minute, 

 2-toothed at the apex ; anther lid-like ; pollen-masses 4, 

 collateral, united by pairs at the apex. — Low herbs, from 

 bulbous roots ; stem 1-2-leaved, sheathed below ; flowers 

 racemed or spiked, minute, greenish. 



M. OPHiOGLOSSOiDES, Nutt. Leaf solitary near the mid- 

 dle of the 5-angled stem, ovate, clasping; raceme short, 

 with the unexpanded flowers crowded in a globular head, 

 elongated in fruit; pedicels slender, much longer than the 

 fl )wars ; lip auricled at the base, 3-toothed at the apex. 

 (Malaxis ophioglossoides, Mulil.) Low shady woods. July 

 and August. Stem 4-8' high; leaf 1-2' long; flowers 

 i" wide. 



23* 



