10 NEOBOT. 



Riddell who sent it to me from New Orleans as 

 an unknown G. with several other rare plants, 

 he is the author of a Western Flora and disco- 

 verer of many new plants there. If his name 

 has been employed aheady, we 'may substitute 

 Anth'iivla sekrai a Raf, 



757. RiDDELiA ANTiPiiiLA Raf Loaves 

 smooth lanceolate acute, equaly serrate, petiols 

 short pubescent, stipules subulate ; peduncles 

 extraxilary unifl. equal to petiols, sepals colored 

 linear lanceolate acuminate pubescent, petals 

 subequal cuneate obtuse, pod divergent strait 

 equal to leaves — apparently a virgate shrub, 

 branches fuscate terete rimose, leaves and pods 

 uncial, almost opposite to each other, flowers 

 yellow small, stamens 5 or 6, shorter than flow- 

 ers. Pods fuscate smooth, seeds black com- 

 pressed squared truncate. 



758. Sesuvium veruucosum Raf. prostrate 

 roughened by warts, leaves thick petiolate obo- 

 vate and cuneate obtuse entire, flowers axillary 

 subsessile commonly solitary— a very distinct 

 sp. with the habit of Portulaca oleracea, but en- 

 entirely covered with rough tubercules and 

 warts, when dry of a fulvous glaucous color all 

 over, many branches, leaves small, flowers 1 to 

 3 in the axils, campanulate, white inside, sta- 

 mens many, and thus totaly unlike the iS^. pen- 

 tandrum of Elliot which is my G. Squibbia 

 maritima. This sp. was sent me from Arkan- 

 zas and the Chacta Country, where it grows 

 near streams on the Yazou and Salt River. 



759. Spergula jtALCATA Raf. Diflfuse de- 

 cumbent smooth glaucous, leaves linear falcate 

 acute, base connate, peduncles axillary equal to 

 internodes and leaves, erect, segments of calix 

 ovate obtuse equal to petals and capsule. — On 



