Orobanckaceae, Lentibulariaceae c^j 



b. The two upper corolla-lobes form a helmet-shaped 

 upper lip. 



Tribe 6. RJiinantJieae. Partial and entire parasites. 



1. Leaves opposite, narrow. Seeds 1-4, large, not 

 winged. Melampyrum. 



2. Leaves opposite. Seeds co , minute, not winged. 

 Upper lip of corolla almost entire. Bartschia. 

 Upper lip of corolla 2-lobed. Euphrasia. 



3. Leaves opposite. Seeds few, winged. 



Rhinanthus. 



4. Leaves alternate. Seeds 00 , minute, not winged. 



Pedicularis. 



II. Ovary i-locular with 00 ovules on more or less 

 parietal placentae. (For I see p. 95, for III see below.) 



Fam. 8. Orobanchaceae. Annual and perennial, 

 usually brownish, parasitic herbs. Leaves scale-like. 

 Flozvers usually racemose, 5-merous, zygomorphic. 

 Corolla distinctly 2-lipped, tube curved. Stamens 4, 

 didynamous. Carpels (2), median. Each carpel with 

 two parietal placentae with 00 ovules. Style i. Fruit 

 a loculicidal capsule. 



Subterranean leaves fleshy and with cavities. Flowers 

 racemed. Stamens shortly exserted. Lathraea. 



Subterranean leaves membranous or o. Flowers 

 sub-spikate. Stamens included. Orobanche. 



III. Ovary \i's>wa\\y i -celled with free central //</<y;//^7 

 bearing 00 ovules. 



Fam. 9. Lentibulariaceae. Herbs, mostly aquatic, 

 or growing in wet places. Roots often absent. Leaves 

 c. 7 



