50 FLORA OF CENTRAL MADAGASCAR. 



peduncles i-l\ in. long ; main branches very divaricate ; bracts 

 very minute, lanceolate ; i)edicels at most as long as the flowers. 

 Sepals orbicular, purplish brown, glabrous, under |- lin. long. 

 Petals obovate, white, ^ lin. long. Stamens 5, alternate with the 

 petals. Ovary 3-celled; style simple. Fruit not seen. — West 

 Betsileo, flowering in December and January, Baron 143 ! Very 

 like the Mauritian G. tri[/yna, Baker, in habit, leaves and inflore- 

 scence, but spinose, with smaller flowers. 



Gymnosporia brachystachya, sp. n. — A tree, glabrous in all its 

 parts, with subterete grey slender branchlets. Leaves shortly 

 petioled, oblong, 1-1-|- in. long, obtuse, deltoid at the base, rigidly 

 coriaceous, with regular parallel rather ascending main veins. 

 Cymes 3-4-flowered, fascicled, about ^ in. long ; pedicels longer 

 than the flowers. Calyx patellae form, f lin. diam. ; sepals minute, 

 semiorbicular. Petals spreading, whitish, suborbicular, about j's in. 

 long. Stamens 5, shorter than the petals ; anthers linear-oblong. 

 Fruit not seen. — Central Madagascar, in the province of Imerina, 

 Dr. Parker! Native name, Toho. There are three undescribed species 

 of this genus in the Kew Herbarium, and four others are described 

 by Tulasne — one under Gymnosporia, and three under Catha. 



Gouania pennir/era, Tulasne. — Central Madagascar (the definite 

 locality not given). Baron 252 ! Gathered iDreviously by Bojer. 



ViTis (Cissus) MicRODONTA, sp. u. — A climber, glabrous in all its 

 parts, with stout fleshy terete stems and stout spirally-twisted 

 tendrils. Petiole 3-4 in. long ; blade simple, suborbicular, cordate, 

 with an open basal sinus, 5-6 in. long and broad, deltoid at the 

 apex, minutely distantly dentate, moderately firm in texture, green 

 on both surfaces. Flowers in leaf-opposed peduncled cymes ; 

 pedicels J in. long. Calyx patellseform, 1 lin. diam., obscurely 

 4-lobed. Petals 4, yellowish, ^ in. long, expanding before they 

 fall. Ovary 2-celled; cells 2-ovuled. Fruit unknown. — Western 

 Betsileo-land, flowering in January, Baron 59 ! Allied to V. 

 pallida of Wight and Arnott, a widely-spread Indian and Tropical 

 African species. Mr. Baron's No. 58, also from West Betsileo, of 

 which he has not seen the flowers, will likely prove to be an allied 

 undescribed species. 



ViTis (Cissiis) oxYODONTA, sp. u. — A shrub, glabrous in all its 

 parts, with slender terete brown woody branchlets. Tendrils none 

 on the specimens. Petiole 1-1-| in. long ; blade ovate, slightly 

 cordate, cuspidate, 2-3 in. long, green and glabrous on both sur- 

 faces, moderately firm in texture, with close very cuspidate 

 ascending teeth. Flowers 20-30 together in axillary cymes on 

 peduncles l-l^ in. long; pedicels ^-^ in. Calyx h lin. diam., 

 patellteform, glabrous, nearly entire. Petals 4, ^ lin. long, falling 

 in a cap. Style longer than the depresso-globose 2-celled ovary. 

 Fruit not seen. — Central Madagascar (the precise locality not 

 stated). Baron 155! Alhed to V. ar(juta, Hook, fil., of the Niger 

 country. 



ViTis {Clsfius) FLORiBUNDA, sp. n. — A shrub, glabrous in all its 

 parts, with terete woody branchlets. Tendiils none. Petiole ^-^ 

 in. long; blade oblong, 2-3 in. long, cuspidate, rounded at the 



