113 



16. Buchnera. 



VIII. Rhinantheae. 



17. Schwalbea. 



terior pair of stamens shorter. Cap- 

 sule broadly ovate, 10-13 mm. long. 

 Seeds reticulate with raised ridges. 15. Otophylla. 



Corolla purple-blue, salverform, the tube very 

 narrow and densely pilose, the lobes widely 

 spreading. Postero-lateral stamens becom- 

 ing rudimentary, the anterolaterals with but 

 one anther-sac. Stigmatic area over entire 

 surface of style apex. Filaments and style 

 less than one half length of corolla-tube. 

 Capsule equaled by and enclosed within calyx- 

 tube. Calyx bibracteolate at base. 

 CC. Posterior sepal shorter or wanting. Corolla 

 decidedly two-lipped, the posterior lobes united 

 and arched nearly to apex, the anterior lobes 

 usually shorter; anterior or one antero-lateral 

 lobes external in bud.. Stigma short, capi- 

 tate. 

 Posterior sepal shorter than others. Capsule 

 turgid, septicidal, only tardily slightly loculi- 

 cidal. Seeds linear, fiat, 2 mm. long. Calyx 

 bibracteolate at base. 

 Posterior sepal wanting. Capsule flattened, 

 loculicidal, splitting through septum. 

 Calyx not bracted at base. 

 Corolla with posterior lobes projecting, not 

 hooded at apex, the anterior lobes very 

 short, thickened, deep-green. Seeds many, 

 reticulate. Bracts foliaceous, distally 

 scarlet. 18. Castilleja. 



Corolla with posterior lobes arched, hooded 

 at apex, the anterior lobes membranous, 

 flat, colored. Seeds few, not reticulate. 

 Bracts not colored. 

 Corolla yellow or pink throughout, the 

 anterior lip not raised into a palate. 

 Seeds more than two. Sepals of 

 each side united nearly or quite to 

 apex. Leaves crenate-serrate to 

 bipinnatifid-lobed. 

 Corolla 12 mm. long. Anthers lanose. 

 Capsule circular, equally two- 

 celled, splitting on both posterior 

 and anterior sides. Seeds 5 mm. 

 long, circular, flat, broadly winged. 

 Sepals as long as the capsule, on 

 each side united nearly to apex. 

 Leaves crenate-serrate. Annual. 19. Rhinanthus. 



