293 



[TAB. LXII.] 



[ A NEW GENUS OF THE NATURAL ORDER 

 OF TILIACE^, FROM THE ISLAND OF MA- 

 DAGASCAR. 



Communicated by Professor Bojer of the Mauritius. 



VINCENTIA TRIFLORA. 



POLYANDRIA MoNOGYNIA. Nat. Ord. TlLIACE^. 



Gen. Char. Cal. 5-sepalus, sepalis reflexis, tortuosis, de- 

 mum deciduis. Cor. pentapetala. Petala 5, apice bifida, 

 basi squama instructa. Torus pentagonus. Stam. nu- 

 merosa, libera, toro stipitiformi inserta. German 1, 

 ovatum, hispidum. Stylus \, persistans. Stigma 4- 

 fidum. Capsula globosa, indehiscens, (vel drupa sicca,) 

 4-pyrena. Nuces loculis 5, vel, abortu, uniloculares, 

 nionosperina?. Semina horizontalia, pyriformia, compressa. 

 Albumen 0. Cotyledones plan as. Badicula ad hilum 

 seminfs versa. Bojer. 



Vincentia triflora. Bojer, MSS. (Tab. LXII.) 



Crescit in sylvis depressis ad ripas fluminis Marou-vtaii 

 dicti in sinu Bombatac, ad oras occidentales Insulae Ma- 



dagascar. Bojer 



Arbo; 



Ulm 



pestris. Truncus brevis, cortice crasso donatus, ut in 

 Tilia europcea, valde ramosus. Bami alterni, elongati, 

 paten tes vel penduli, versus apices flexuosi et virides, 

 glabri. Stipula subulatse, deciduffi. Folia alterna, petio- 

 lata, ovali-oblonga, juniora longe acuminata, grosse ser- 

 rata, basi obtusa; adulti&ra magis cordata, undulata, 

 4-poIlicaria, 2 uncias lata, glaberrima, nitida, basi trinervia, 

 venisque minutis transversalibus, supra virldia, subtus 

 pallidiora, venseque magis prominentes. Petioli brevjus- 

 culi, graciles. PeduncuH axillares, solitarii vel bini, apice 

 triflori. Mores pedicellati, terni, ante florationem bractea 

 ^ate ovata, membranacea, nitida inclusa. Alabastra oblonga, 



