(74) 54 



Lecythis pachysepala, Spruce in Mart. Fl. Bras. 1. c. 494. Junc- 

 tion of the Rivers Beni and Madre de Dios (2528). 



Gustavia angiista, L. Amoen. Acad. viii. 266. Falls of the Ma- 

 deira (656). 



Gustavia Brasiliana, DC. Prodr. 1. c. 290. Junction of the Beni 

 and Madre de Dios (657). 



As the species of the order Myrtaceae have been so exceedingly 

 multiplied by Berg, and many of his descriptions are not rep- 

 resented in the Kew Herbarium, I was unable to distinguish 

 any new species among the numerous specimens collected by 

 Dr. Rusby. 



MELASTOMACE^. 



AcisaiitJiera ahincsfolia (DC), Tri. Trans. Linn. Soc. xxviii. Falls 



of the Madeira, Brazil (2534). 

 Pterolepis trichotoina (Rottb.), Cogn. in Mart. Fl. Bras. xiv. (3) 



261. Guanai, 2,000 ft. (2325). 

 Tibouchina graiiulosa (Desr.), Cogn. Mapiri, 5,000 ft. (2247), 



var. ANGUSTIFOLIA, var. nov. Folia anguste oblonga, 8 cm. 



longa 2 cm. lata, acuta; petiolis i cm. longis. Yungas, 6,000 



ft. (2245). 

 Tibouchina barbigera (Naud.), Baill. Adans. xii. 75. Guanai, 



2,000 ft. (2326). 

 Tibouchina longifolia (Vahl), Baill. 1. c. 74. Yungas, 6,000 ft. 



(2336; 2243); Guanai, 2,000 ft. (2244); Yungas, 4,000 ft. 



(2549), the latter determination from imperfect specimens 



and uncertain. 

 Tibouchina paniCULARIS (Naud). [Chcetogastra panicnlaris, 



Naud. Ann. Sci. Nat. (III.) xiv. 129; Pleroma panicnlare, 



Triana, Trans. Linn. Soc. xxviii. 46.) Yungas, 4,000 ft. (2327). 

 Tibouchina capitata (Naud.) Cogn. mss. {Micranthella capi- 



tata, Naud. I.e. xiii. 350; Pleroma capita^iifn, Triana, \. c.) 



Mapiri, 2,500 ft. (2727). Det. Cogniaux. 

 Tibouchina LATIFOLIA (Naud.) {Micranthella latifolia, Naud. 



1. c. 351 ; Pleroma latifolinm, Triana, 1. c. 47). Yungas, 4,000 



ft. (2337); 6,000 ft. (2338). 

 Tibouchina Rusbyi, Cogn. sp. nov. (sect. DictantJiera): ramis 



junioribus petiolis pedunculis calycibusque brevissime ct 



densiuscule hirtellis ; foliis breviter petiolatis, oblongis, basi 



