522 , DICOTYLEDONEAE. GRAVESIA, 
longze ; pedicelli 2-5 mm. longi. Calyx late campanulatus, 5 mm. longus, 
obscure lobatus, limbo extus 5-tuberculato. Petala rosea, obtusa, 5 mm. 
- longa. Capsula 7-8 mm. longa lataque. 
In Madagasearia (Chapelier, Goudot); inter Tamatave et Antana- 
narivo (Meller). 
5. G. angustifolia; ramis teretiusculis, junioribus petiolisque 
longissime et densiuscule hirsutis ; foliis longiuscule petiolatis, anguste 
oblongis, obtusiusculis, margine leviter undulatis et sparse ciliolatis, 
supra paucisetulosis, subtus glabratis; cymis axillaribus, 2-53-floris; 
calyce densiuseule hirtello. 
Caulis paulo ramosus, 2-3 dm. altus, ramis satis gracilibus. Petiolus 
eracilis, 1-6 em. longus. Folia submembranacea, 5-nervia vel 5-pli- 
nervia, basi rotundata, 7-11 cm. longa, 2-3 em. lata, nervulis subtus 
satis prominentibus. Cymæ 1-3 cm. longse; pedicelli 4-7 mm. longi. 
Calyx late campanulatus, acute denticulatus, 4 mm. longus. Petala 
1-8 mm. longa. Antherz postice crassissime longeque appendiculatze. 
In Madagascaria boreo-orientali (Humblot in hb. Mus. Paris.). 
II. Antherc postice minutissime acuteque calcarate. — Spec. 6-8. 
(67) G. porphyrovalvis (Baker! in Journ. Lin. Soc. XXIL, 477); 
caule deeumbente, hispidulo; petiolis elongatis, dense hispidulis ; foliis 
late oblongis, apice rotundatis, basi subeordatis, obscure crenulatis, 
5-nerviis, supra parce hispidulis, subtus ad nervos hispidis; calyce 
hispidulo, 10-costato. 
Caulis gracilis, 3 dm. longus. Petiolus 3 */,-5 em. longus. Folia 
membranacea, 2 '/,-5 em. longa, 1 !/,-3 em. lata. Cymæ terminales, 
1-3-florz; pedicelli dense hispidi, 12-20 mm. longi. Calyx fructifer 
globosus, 4 mm. latus. Capsula 5-valvis, apice rubro-purpurea, e calyce 
protrusa. 
In Madagascaria (Baron). 
T. G. Rutenbergiana (H. Baill.! in herb.); caule ascendente, 
superne leviter furfuraceo-puberulo ; petiolis breviusculis, supra leviter 
hirtellis; foliis ovato-oblongis, obtusis, basi subcordatis, minutissime 
dentieulatis, 5-nerviis, utrinque glabris; calyce leviter furfuraceo- 
puberulo, teretiusculo. 
Caulis gracilis, teretiusculus, paulo ramosus, 2-3 dm. altus. Petiolus 
* al */4 em. longus. Folia tenuiter membranacea, 3 '/,-7 em. longa, 
