IC09ANDRIA MONOSYKIA. 



337 



I. MONOGYNIA. 



3pg. CACTUS. Gen. pi 838. 

 1. C. articiilato-prolifer ; articulis compressis ovatis, spinis Opuntia. 



setaceis.-- JFilld. sp pi. 2. p. 943. 

 Icon Knorr thes. I. t. F. a. 

 In i)ine-barrens and sandy fields: New Jersey to Caro- 



lini. fj. June. July. v. v. Flowers large, yeHow j 



berries red, eatable, known by the naiue ol Pntkly 



Penrs. . 



There are two or three nnore species growing on the 



Missfuri ; but having had no oppor; unity to see them 



myself", I only mention it here, to dra-v the aiiention 



of the botanists in those regions towards them. 



400. BARTONIA. Sims in hot. mag. 1-487. 



1. B. germine folioso, seminibus nudis. srnata* 



B. dec?ipetala Sims I. c. 



On chalky soil and arid volcanic grounds, on the bor- 

 dt-rs of the iMissouri. M.Lewis. ^. July, Aug. 

 V. s. in Herb. Lewis. 

 Radix biennis, fibrosa. Caul's ramosus, teres. Rami 

 patentes, scabri. Folia alterna, semi-amplexicaulia, 

 obionga, basi dilatata, supeine sensim a'lgustiora, in- 

 ciso dentata sen subpinnatifida, utrinque scabra, glau- 

 cesceniia. Flore<t magni, albi, ex axilhs superior^buS;^ 

 solitarii, peduncula'i Pedunculi foliosi, folio breviores. 

 Ca/?/i- superuscampanulatus, 5-partitus; laciniis ova- 

 tis, longissime acuininatis, pe-alis paulo brevioribus. 

 Pttala ;0. alba, lanceolato-oblonga, acita, unguicu- 

 lata. Stamina numerosa, iilitormia, pe'alis breviora. 

 Antherce luteae, oblongas, biloculares. Germen infe- 

 rum, oblungum, foliis pinnatifidis calyce brevioribus 

 ornatum. StyLui staminibus longior, filiformis. 5/?^- 

 ma simplex. Capsula cylindnca, calyce coronata, 

 apice operculati;ii 5-valvis. Semina obionga, plana. 

 This beautiful plant, whose large white flowers open 

 during the night and spread a most agreeable odour, 

 ■was discovered in the year 1804, on the white blufts 

 near the Maha village, by the late M. Lewis, Esquire. 

 In 1807 I matle a drawing and description of it^ for 



