34 TRIANDRIA.— MONGOYNIA. 



digitate or fasciculate. Spikelets by pairs, on shorJ 

 bifid pedicels. Cal. 1 — 2-valved, 2-flowered ; infe- 

 rior glume often inconspicuous. Inferior floret 

 abortive, 1-valved, herbaceous. Superior floret 

 perfect ; valves coriaceous. 



98. ANDROPOGON. Spikelets by pairs, polygamous; 

 the inferior one abortive, (antheriferous or neuter,) 

 on a bearded pedicel ; glum, and cor. frequently 

 very minute or wanting. Superior spikelet sessile, 

 1 flowered, perfect; glumes subcoriaceous ; cor. 

 2-valved, shorter than the calyx, membranaceous ; 

 the inferior valve generally awned. 



09. HORDEUM. Spikelets 3 at each joint of the 

 rachis, 1 -flowered, all perfect, or the lateral ones 

 abortive. Glum, lateral, subulate. — Perfect fl. : 

 Cor. 2-valved ; inferior valve terminating in a bris- 

 tle. Seed coated. 



TRIGYNIA. 



100. HOLOSTEUM. Cal. 5-leaved, coloured within. 



Pet 5, 2-parted. Caps. I -celled, bursting at the 

 summit. 



101. MOLLUGO. Cal. 5-leaved, coloured within, 



Cor. 0. Capsule 3-celled, 3-valved. 



102. LECHEA. Cal 3-leaved. Pet. 3. Style ; stig. 



plumose. Caps, 3-celled, 3-valved, with as many 

 interior valves opposite the others ; cells 1-seeded. 



103. PROSERPINACA. Cal. superior, 3-parted, per- 



sistent. Cor. 0. Nut bony, triquetrous, 3-celled. 



TRIANDRIA. 



MOMOGYNIA. 



25. FEDIA. Valerianae. 



F. radiata : leaves spathulate-oblong, nearly entire ; 



fruit pubescent, somewhat 4-sided, naked at the top. 

 HAB. In fields. May. ©. Stem dichotomous, mostly 



erect ; fl. blue, infastigiate corymbs. 



