V 



1919.] NATURAL SCIENCES OF PHILACELPHIA. 229 



Stem glabrous. Leaves spatulate-oblong, 

 with one evident longitudinal nerve. 

 Pedicel bibracteolate. ■ Sepals acute or 

 acutish, much exceeding the acute cap- 

 sule. Styles united to apex, and stig- 

 * mas short, semi-capitate. 



9. Bramia. 

 Corolla pubescent within over bases of all 

 lobes, blue throughout; posterior lobes 

 united to apex. A circle of bristles sur- 

 rounding the base of the ovary. Outer 

 sepal slightly cordate, evidently exceed- 

 ing the linear-attenuate innermost. Cap- 

 sule less than one-half as broad as long. 

 Leaves clasping, broadest proximally, 

 crenate. Pedicels bibracteolate, spread- 

 ing in fruit. Stem pubescent. Plant 

 lemon-scented. 10. Hydrotrida. 



Stamens two, the antero-laterals lost. Corolla 

 3 mm. long, white. Outer sepal deeply 

 cordate and conspicuously reticulate. Stem 

 finely pubescent. Pedicels not bibracteo- 

 late. 11. Herpestis. 

 Leaves dimorphic; several lanceolate ones borne on the 

 abbreviated basal portion of the stems, and a pair 

 of oval ones at the apex of the slender distal portion. 

 Capsule wider than long, deeply notched, with 

 rounded flattened lobes, only dehiscing loculicidally. 



12. Am/pkianihus. 

 Seeds with fine transverse lines. Corolla with two raised 



ridges (each formed by the adherence of the filament) 



to the antero -lateral sinuses, and which project as 



knob-like processes beyong this point (the free portion 



of the filament appearing as a lateral outgrowth of 



the adherent portion). Posterior lobes of the corolla 



less than two-thirds the length of the anterior. 



Corolla violet-blue, 6-11 mm. long, the posterior lobes 



|-f length of the anterior. Postero-lateral stamens 



perfect, antero-lateral filaments without anthers. 



Style with an enlarged callose base. Sepals five, 



united at base. Capsule two-celled, oval in outline, 



2-5 mm. long. Ascending or repent. 



13. Ilysanthes. 

 Corolla pale-lavender or white, 1.5-2 mm. long. Postero- 

 lateral stamens lost, antero-lateral filaments with 

 anthers. Style filamentous to base. Sepals four, 

 the posterior lost. Capsule one-celled at maturity 

 (by loss of septum and shortening of the placentae), 

 globose, 1 mm. long. Repent. 



