310 DICOTYLEDONEJE. DISSOTIS . 
Caulis robustiuseulus, flexuosus, '/-] m. longus, ramis hirsutis, 
aeutiuseule tetragonis. Petiolus '/4-1'/, em. longus. Folia tenuiter. 
membranacea, 2-5 cm. longa, 1-2 */, em. lata. Flores solitarii; brac- 
teæ ovatze vel oblongze, eiliatze, 2-4 mm. longs. Calycis tubus 7-8 mm. 
longus; lobi triangulari-lineares. Petala late obovata, ciliata, 1 '/;- 
2 em. longa. Staminum majorum connectiva basi truncata. 
In Guinea (Thonning), ad Patteh secus flum. Quorra (Vogel), ad 
Abbeokuta (Irving); in Dahomey ad Humtidi (F. Newton); in Gabo- 
nia et Loango (Soyaux); in Kameroon ad Abo (Buchholz); in Congo ad 
Lulunka (Demeuse); in Angola (Monteiro); in Mozambique seeus flum. 
Luaboet Moramballa (Kirk); in Zanzibar (Bojer, Boivin, Spekeet Grant). 
18. D. tristemmoides ; tota subsparse longiuscule adpresseque 
setulosa; caule erecto; folis anguste ovatis, breviter acuminatis, 5- 
nerviis ; calycis lobis tubum subzequantibus. 
Rami graciles, obtuse tetragoni. Petiolus dense hirsutus, '/,-1 */, em. 
longus. Folia membranacea, 6-7 em. longa, 3-3 '/ em. lata. Flores 
glomerulati; bracteæ ovatae vel oblongæ, longe ciliatze, 3-5 mm. lon- 
gæ. Calycis tubus 5 mm. longus; lobi subulati, 4 mm. longi. Petala 
late obovata, apice truncata vel subretusa, vix ciliata, 5-10 mm. longa. 
Staminum majorum connectiva basi retusa. 
. In Africa occidentali ad Ogóoué (Thollon in hb. Mus. Paris.). 
D. Calyx pube stellata canescentia dense furfuraceus. 
... 19. D. incana (Triana ! l. c. 58, tab. IV, fig. 44d) ; ramis obtu- 
siuscule tetragonis, densiuscule furfuraceis; foliis brevissime petiola- 
tis, basi rotundatis vel subeordatis, supra punctis minutissimis stella- 
tis eanescentibus subsparse vestitis, subtus nervuloso-reticulatis ; 
calyce canescenti, dense furfuraeeo non setuloso, lobis cum dentibus 
subulatis brevibus alternantibus. — Osbeckia incana E. Mey.! ex 
Hochstt. in Walp. Repert. V, 708. — O. eanescens E. Mey.! in Dot. 
Mag. tab. 3790. — Argyrella incana Naud.! l. e. XIII, 300, tab. 6, 
fig. VII. — Osbeckia Umlaasiana Hochstt.! in Harv. et Sond. Fl. 
Cap. IL, 518. — Dissotis caneseens Hook. f.! l. e. 453. | 
Suffrutex 1-1 '/, m. altus, leviter ramosus. Petiolus 2-5 mm. longus. 
Folia rigidiuscula, sepius oblonga, 5-nervia, obtusa, 3-7 em. longa, 
1-2 */, em. lata. Flores in panieulas foliosas dispositi. Bracteæ canes- 
centes, 3-5 mm. longs. Calycis tubus 6 mm. longus; lobi oblongi, - 
obtusiusculi, 5-6 mm. longi. Petala violacea, late obovata, 2 cm. 
longa. Staminum majorum connectiva basi truncata. 
