56 DIDYNAMIA. AK^GIOSPERMIA, 



^ers equally lobcd, iincombined. Capsule 2-ccl- 

 led, 2-valved. Seeds aii.qular. 



Herbaceous; leaves entire, alternate and opposite; flow- 

 ers alternate, bracteaie, in terminal racemes; color blue- 

 ish, purple, or yellow. 



Species. 1. B. pallida. '2. acuminata. Ph. o-tennifoUa. 

 Ph. Is not this a bad specimen of Enchroina grandi/lora,. 

 at all events not a species of this genus? 4- olpiim. 5. 

 Gymnandra. Thriviut^ near the limits of phaenoijamous 

 vegetation, within the arctic circle. 



Partly an alpine and tluroj)ean genusy extending to t!ie 

 Levant. 



444. RHINANIIIUS. L. 



Calix 4-c!ert, vi'iitrlcose. Corolla ringent;, 

 upper lip mostly compressed. Capsule bilocular, 

 obtuse, conipiTssed. 



Herbaceous; leaves opposite, mostly toothed or serrate; . 

 flowers opposite, bracteate, in terminal spikes. 



Species. 1. II. Crisla-^ulli. H.\b. In Canada. 



A genus of 10 species, dispersed throuj^li both hemis- 

 pheres from Siberia to India; within its proper limits per- 

 haps solely European. 



445. EUPHRASIA. L, (Eye-Brigbt.) 



Calix cylindric,4-cle{'r. Corolla bilabiate; tip- 

 per lip bififl; lower 3-lobcd; s<'grnents bifid. 

 Lobes of the 2 lower anthers spinulose. 



Herbaceous, or sufPruticose; leaves opposite or alter- 

 nate; flowers bracteaie, axillary, producing- terminal ra- 

 cemes. 



Species. 1. ^.officinalis. 2. ladfolia. The first indige- 

 nous to Canada the second to Labrador. 



A small genus of about 15 species,, chiefly European, 

 and extending into Barbary. 



446. *ORTUOCARPUS.t 



Calix tubular, semlquadrifid. Corolla bila- 

 biate, closed; upper lip smaller, conipr' sscd, 



"t^lhe straightner,B of the fruit, readily distinguishing this ge- 

 nus from ^MeUxmpyruin. 



