250 Mr. J. Miers on the genus Margaranthus. 



bractese parvce : flores speciosi, violacei, interdum pallidiores, 

 corolla tubo calyce subcequante, rarius 2-4<-plo longiore *. 



1. Franciscea macrophylla, Cham. Schl. Linn. ii. 601. 



2. hydrangaformis, Pohl. PI. Bras. i. 7. tab. 7. 



3 capitata. Brunsfelsia capitata, Bth., DC. Prodr. 



x. 198. 



4. pauciflora, Cham. Schl. Linn. ii. 600. 



5. Bahiensis. Brunsfelsia Bahiensis jJSth.,~DC. Prodr. 



x. 590. 



6. calycina. Brunsfelsia calycina, Bth., DC. Prodr. 



x. 199. 



7. obovata. Brunsfelsia obovata, Bth., DC. Prodr. 



x. 199. 



8. confer tiflor a, Pohl. PI. Bras. i. 6. tab. 5. F. di- 



varicata, Pohl. ibid. tab. 6. 



9 # ramosissima, Pohl. PI. Bras. i. 5. tab. 4. 



10. — acuminata, Pohl. PI. Bras. i. 4. tab. 3. 



11. latifolia, Pohl. PI. Bras. i. 3. tab. 2. 



12. grandifiora. Brunsfelsia grandiflora, Don, N. 



Edin. Phil. Journ. 1829. 



13. « maritima. Brunsfelsia maritima, Bth., DC. Prodr. 



x. 200. 



14. Hopeana, Hook. Bot. Mag. t. 2829. F. unifiora, 



Pohl. PI. Bras. i. 2. tab. 1. 



15. australis. Brunsfelsia australis, Bth., DC. Prodr. 



x. 200. 



Margaranthus. 



On a former occasion (huj. op. vol. iv. p. 136), although I had 

 not seen any specimen, I noticed this genus in order to contrast 

 it with other allied genera. Since then, I have been glad to 

 meet with a second very distinct species, that has enabled me to 

 comprehend more fully its structural features, and these I find 

 correspond well with the very accurate observations of Prof. 

 Schlechtendal, upon which the generic character (loc. cit.) was 

 founded. I proceed therefore to describe the plant alluded to. 



1. Margaranthus tenuis (n. sp.) ; — herba glaberrima, dichotome 

 ramosa, ramis divaricatis, tenuibus, angulato-sulcatis ; foliis 

 lanceolatis, utrinque acutis, caulinis obsolete pauci-dentatis, 

 longe et tenuissime petiolatis, junioribus floralibus linearibus ; 

 floribus pedunculatis, solitariis, axillaribus. — Mexico {v. s. in 

 herb. Lindley. Coulter, n. 1220 bis). 



This plant bears much resemblance to that figured by Prof. 



* Sectional details showing the characters of this genus will be given in 

 vol. ii. plate 59 A. of the " Illustr. of South Amer. Plants.' 



