Dicreanthus.| CX. PODOSTEMACEH (BAKER AND WRIGHT). 127 
1. D. africanus, Lng. in Engl. Jahrb. xxxviii. 96, fig. 1. Thallus 
many-lobed. Stems sometimes over 3 ft. long, 3-4 lin. thick, terete 
below; branches angular. Leaves on one side of the branches, cuneate, 
deeply divided into narrowly linear acute segments. Cymes opposite 
the leaves, lower 6-20-flowered, upper 1—5-flowered ; bracts small, very 
narrowly linear or sometimes the lowest ovate, acute. Spathelle 
subcylindrical, slightly curved at the apex, splitting up one side, 3-4 
lin. long, 1 lin. in diam.; pedicel inflexed in bud, at length 2-3 in. 
long. Perianth-segments linear, acute, 1 lin. long. Filaments free, 
1 lin. long; anthers narrowly linear, emarginate at both ends, 14 lin. 
long. Gynophore 3-14 lin. long. Ovary long-clavate, 3 lin. long ; 
stigmas small, subulate. Capsule 4 lin. long, pale brown. 
Upper Guinea. Cameroons: on submerged rocks at the North Falls near Edea, 
Winkler, 901. : 
South Central. Congo Free State: Mopinga-Lulua Island, Pogge, 1431. 
Native name “ saule.” 
2. D. pusillus, C. W. Wright. Stem about 9 lin. high. Leaves 
petioled, about 7 lin. long, subdichotomously divided into 3-5 very 
narrowly linear obtuse segments, slightly sheathing and with a small 
tooth-like stipule on each side at the base. Spathelle almost sessile, 
irregularly bursting at the apex; flowers involute in bud; pedicel 
about twice as long as the spathella. Filaments united about half-way ; 
anthers broadly oblong, slightly separated at the obtuse or almost 
quadrate apex. Ovary ellipsoid; styles 2, obtuse. Fruit ellipsoid, 
l-celled, about 1 lin. long.—Spherothylax pusilla, Warming in Kgl. 
Danske Vidensk. Selsk. Skrifter, ser. 6, ix. ii. 146, fig. 39. 
Upper Guinea. Cameroons: Bipinde, at the Lokundje rapids, on submerged 
stems in the centre of the stream, Zenker, 1050! 
7. SPH MROTHYLAX, Bischoff; Benth. et Hook. 
f. Gen. Pl. iii. 113. 
Flowers hermaphrodite, subtended by 2 minute scales. Stamens 2 ; 
filaments united to the apex; anthers 2, sessile at the top of the 
column, 2-celled, or solitary and 4-celled according to Weddell, dehis- 
cence longitudinal, Staminodia 2, small, linear. Ovary ovoid, 8- 
ribbed; valves 2, unequal, the larger persistent, the smaller deciduous. 
Seeds ellipsoid, compressed.—Stems slender and branched, arising from 
a Marchantia-like base. Leaves elongate, laciniate. Spathelle pro- 
duced both on the thallus and on the elongated stems.—Anastrophea, 
Wedd. in DC. Prodr. xvii. 78. 
Species 4, one in South Africa. 
Rhachis of inflorescence densely covered with fimbriate 
scales , he : : : ; 
Rhachis of inflorescence not scale-bearing. 
Flowers clustered on. the erect stems 
Flowers solitary on the erect stems 
1. 8. warmingiana. 
2. S. abyssinica. 
3. 8. heteromorpha. 
