FLOBA OF MADAGASCAR. 411 



Taeenna (§ Webeba) macbochlamys, n. sp. 



Arborea, ramulis crassis apice ferrugineo-pubescentibus, stipulis magnis 

 rigidis cadticis, foliis petiolatis obovatis emarginatis coriaceis magnis facie 

 glabrescentibus dorso venulosis ferrugineo-pubescentibus, floribus copiosis 

 in paniculasterminales ramis cymosis primum bracteis magnis ovatis coria- 

 ceis cinctas dispositis, pedicellis ssepissime productis brevibus, calycis 

 tubo globoso, limbo brevi truncato, corollse tubo brevi cylindrico, seg- 

 mentis oblongis tubo sequilongis, fructu globoso lsevi magnitudine pisi. 



An erect tree, 30-40 feet high, with stout terete branchlets, 

 clothed upwards, as are the branches of the panicle and under- 

 side of the leaves, with short ferruginous pubescence. Stipules 

 large, rigid, orbicular, spathulate. Leaves thick and rigid in 

 texture, 4-6 in. long and nearly as broad, prominently emargi- 

 nate at the apex, all the veins and veinlets conspicuously raised 

 beneath. Panicle ample, terminal, with very numerous divari- 

 cated dichotomously cymose branchlets. Calyx-tube coriaceous, 

 semiglobose, j 1 ^ in. in diam. ; limb short, collar-like, truncate. 

 Corolla £ in. long. Fruit indehiscent, coriaceous, black, smooth, 

 -^ in. in diam., with several tightly-packed seeds in each cell. — 

 Baron 423 ! 1241 ! 1956 .' Forest of Audrangaloaka, Br. O. W. 

 Barker ! 



Plectro>-ia (§ Canthitjm) buxifolia, n. sp. 



Fruticosa, glabra, stipulis parvis deltoideis, foliis breviter petiolatis 

 parvis oblongis lucidis subcoriaceis, floribus in umbellas multas axillares 

 paucifloras dispositis, pedicellis calyce 3-4 plo longioribus, calycis tubo 

 campanulato dentibus mimitis deltoideis, corollae tubo infundibulari seg- 

 ments ovatis, fructu duro compresso didymo conspicue emarginato. 



An erect shrub, glabrous in all its parts, with slender straight 

 branchlets. Leaves firm in texture, bright green, 1-1 \ in. long, 

 deltoid at the base, shining on both surfaces, the veining fine 

 and indistinct. Flowers 4-6 together in umbels in the axils of 

 the leaves all down the branchlets ; pedicels f-| in.Jong. Calyx- 

 tube globose, green, -fa in. in diam. Corolla £ in. long. Fruit 

 hard, didymous, compressed, j in. in diam., with a deep groove 

 between the two oblong carpels.— Baron 274! 965! 1019! 2177! 

 2213 ! 3137 ! 



Plectbonia (§ Cakthium) Boiviniajta, n. sp. 



Arborea, glabra, stipulis parvis deltoideis, foliis breviter petiolatis ob- 

 longis acutis subcoriaceis, floribus in umbellas multas axillares paucifloras 

 dispositis, pedicellis calycem floriferum 2-3plo superantibus, calycis tubo 



