58 NEW SYLVA 



tals white, whence my name, since all the sp. 

 are thyrsiflore. 



619. CEAN. AZTJR^US Desf. ic. 232. Lod. cab. 

 110, Edw. b. reg. 291. Dec. Shrubby pubescent 

 leaves ovatoblong acute rough serrate, beneath 

 tomentose, panicle thyrsoidal, base foliose, flow- 

 ers blue in Mexico, New Mexico and Texas, 

 an elegant species. 



620. CEAN. MICROPHYLUS MX. E. &c. Shrub- 

 by much branched, quite smooth, branches di- 

 vergent, leaves fasciculate minute oboval or 

 rounded obtuse trinerve, racemes terminal co- 

 rymbose Florida, Georgia, Alabama, a very 

 peculiar sp. habit unlike the others, but like the 

 next, flowers vernal as in the Southern species. 



621. CEAN. SERPYLLIFOLIUS Nut. Eat. De- 

 cumbent bushy, branches filiform, leaves mi- 

 nute nearly smooth elliptic ovate obtuse serru- 

 late, petiols and nerves strigose, panicles axill- 

 ary peduncled pauciflore glomerate Florida, 

 very small, habit of thyme like the last, and 

 probably both ought to form a subgenus. Is it 

 only a var. of it ? Elliot has blended both ; disc 

 by Dr. Baldwin near St. Mary. 



Genus EVONYMUS. 



Without giving a complete monograph of 

 our sp. I can greatly increase them having 4 

 or 5 new ones to describe. They form 3 sub- 

 genera with opposite leaves and axillary pedun- 

 cles. This G. had been wrongly united to 

 Rhamnides, since the stamens are alternate to 

 petals, and the fruit is peculiar, it belongs to a 

 peculiar family (with Tobira) near to the Ce- 

 lastrides. Tobira differs by 6 stamens and 

 caps 31oc. polysperm. 



622. PLATOMESUS Raf. calix 41obed, 4petals, 



