102 iMPOSITAE. 



2230. CHBESTA Arrabida. 

 krrabida, Flor. Flumin. Mll i. 150. Gardn. in Hook. Lond. jonrn. or bot l - 

 vTlprs. Rcpert. bot. sysl. II. 549. Endl. Gener. planl. Soppl. III. \ 



Capitula 2 12-flora homogama, plurima in glomerulum terminalem ebrac- 

 teatum colleota; involucri partialis Bquamae imbricatae siccae obloDgae vel 

 lineari-lanceolatae, basi nervosae. Corollae regulares quinquefidae purporeae 

 vel roseae. lobaenia sericeo-villosa. Pappus pluriseriafM setaceus scaber, 

 setis exterioribus paucis brevioribus, sensim interiores aequantibus. — Herbae 

 vel suffrutioes Brasilienses velutini vel pubescenti-lanuginosi scapigeri vel 

 ramosi; Ibliis alternis coriaceis integerrimis vel dentatis. 



• Sectio I. EDCHRESTA Gardn. 1. c. 



Herbae vel suffrutices ramosi: ramis plerumque elongatis lomentosia nudis, glomcrulo 

 sobgloboso terminatis. Chresla DC Prodr. V. 85. — Wlprs. I. <•. no. 1—5.; 

 1. Clllt. INTERMEDIA Gardn. in Hook. Lond. journ. of bot V. 236. - Caule suffruUcoso 

 ramoso; ramis strialis velulino-tomentosis; foliis breviter petiolatis oblongo-ellipticis, 



ulrinqi btusis minule dentalis penniveniis reticulalis, suprael infira adpresse velutino- 



lomentosis canis; ramis versus apicem nudis, capitulo globoso compacto lerminalis; ca- 

 pilulis 2 3-floris oblongis; involucri squamis lanceolatis acuminatis, extus lomentosis; 

 acbaeniis sericeo-villosis. ^t- Suffrutex ramosus tfipedalis, folia submembranacea ve- 

 nosa, venis otrinque prominulis, 3 3% polL longa, l'/s circiter lata, corollae violaceae, 

 loliis extus longe i>ilnsi>, pappus sordide albidus. Inlermedia inter Chr. pycnocepha- 

 iniii el Chr. tphaerocephalam DC. — Crescit in Brasiliae dislrictu AdamanUum ad Rio 

 San Francisco. 



Sectio II. PYCNOCEPHALDM Gardn. 1. c. 

 Herbae perennes vel suffrutices scapigeri, scapo simplici lomentoso. — [Pycnocephar 

 lum DC. Prodr. V. 83. — Chrestae spec. no. 6—9 Wlprs. 1. c. 5-13.) 



Divisio II. ELEPIIA\TOPEAE Casslnl. — DC. 1. c. 75. 



2231. ELEPIIA\TOPVS Cass. 

 (DC. Proilr. V. 85. — Elephantosis Less. — DC. 1. c. 87. — Wlprs. Repert, bol. 

 syst. II. 543.-; 

 1. E. PALUSTRIS Gardn. in Hook. Lond. journ. of boL V. -237. Caule erecto ramoso 

 angulato birto, demum glabriusculo ; foliis longe lanceolato-linearibus, basi dilatatis am- 

 plexicaulibus, apice attenuatis obtusis, minule el distanter serralis, utrinque parce hirlis 

 et minute scrobiculatis, floralibus late cordato-orbiculatis acuminatis serratis reticulatis 

 pellucido-punctatis villosis \rl glabratis. ^- — Herba erecta l -2 1 >-pedaIis, folia penni- 

 venia 0—8 poll. longa, 1 •> lin. lata, capitula quadriflora in glomerulum foliis cincrum 

 dense aggregata, involucrum <*< >n i]m-c<^ii tn biseriale, squamis oblongo-lanceolatis acumi- 

 natis subtrinerviis, extus ad apicem parce pilosis, corolla glabra, acbaenium oblongum 

 compressum glaberrimum tricoslalum, pappus uniserialis, paleis 8 late lanceolatis acu- 

 minafis serrulatis. — Crescil in Brasiliae provinciis Minas Geraes el Piauby. 



DiTisio III. llOLANDREAE Cassini. — DC. 1. c. 88. 



223?. LAOASCEA 7/. B. Kth. 

 DC. Prodr. V. 91. Wlprs. Repert. bot. syst. II. 543." 

 1. L. (Lagasca kl NTIIIANA Gardn. in Hook. Lond. journ. of bot. V. 238. — Annua, tota 

 molliter hirsuta: foliis longe petiolatis late ovalis acuminatis serratis trinerviis; capitulis 

 nnifloris, in glomerulum tiiliis cinctum dense aggregatis; glomerulis opposilifoliis pedun- 

 culalis, petiolo subaequalibus. © — Herba erecta subramosa 1 2-pedalis, folia opposila 

 4— 4 1 /-. poll. longa, l'/ s — 3 poll. lata, petioli 12 ]•'> lin. longi, involucrum proprium ani- 

 seriale gamopbyllom tubulosum glanduloso-striatum quinquepartitum, lol>is lanceolatis 

 acuminatis trinerviis, corollae albae extus pubescentes, achaenium oblongum compressum 



