234 cxxiiic. HORACE.^ (Rendle). [Myriantkns. 



minute grey hairs, ultimately glabrous. Leaves with 5 leaflets, 

 membranous, lanceolate, with a long sharply acuminate apex, 1-1 J in. 

 long, acute base and entire margin, glabrous on the upper face, 

 covered with a minute grey tomentum beneath, the three median 

 leaflets 8f-10| in. long, 2J-3J in. wide, narrowing gradually from the 

 upper third to the 7-10 lin.-long stalk ; the lateral leaflets about 

 4 in. long with a stalk 5 lin. long ; petiole 4-6J in. long. Male 

 inflorescences much branched, about 4 in. long and broad, the ulti- 

 mate branchlets bearing more or less confluent nearly globular 

 clusters of flowers f-1 lin. in diam. on pedicels |-1 lin. long. Flowers 

 3-4-merous ; perianth-segments obovate, ciliolate, shorter than the 

 stamens ; anthers didymous. Female plant unknown. 



South Central. Beni : forest of Muera, north-west of Fort Beni, Mildbroed, 

 22 ()0. 



Near 31. gracilis, Engl., but distinguished by the entire leaf -margin and the 

 small spherical flower-clusters. 



4. M. Laurentii, De Wild. JEtudes Fl. Bas- et Moyen-Congo, iii. 68. 

 Branchlets and petioles covered with short appressed hairs, cortex 

 brownish, longitudinally striate ; internodes about 2 in. long. Leaves 

 with 5 leaflets which are oblong or obovate-oblong, acuminate at the 

 apex with a long sharp point, base wedge-shaped, margin sharply 

 serrate-dentate. 5^-9 in. long, 1|-3J in. wide, sessile except the 

 median which is shortly stalked, glabrous on the upper face, with a 

 short whitish tomentum beneath ; lateral nerves about 20 on each 

 side, more prominent beneath, network between the secondary veins 

 more apparent on the upper face ; the lateral basal leaflets are very 

 slightly asymmetrical ; petiole furrowed, 4-4f in. long and about 

 IJ lin. thick. Male inflorescences in pairs ; peduncle about 2 in. 

 long, hairy like the branchlets ; inflorescence about 3 in. in diam. ; 

 flowers in small more or less confluent balls about lJ-2 lin. in diam. ; 

 perianth about as long as the stamens, lobes with ciliate margin. 

 Female flowers and fruit unknown. 



South Central. Belgian Congo : Eala, Laurent, 2002. 



Near M. Preussii, Engl., but differs in having the leaves more narrowly wedge- 

 shaped at the base and with shorter stalks, sometimes even sessile or subsessile. 



5. M. Preussii, Engl in Ewjl. Jahrh. xx. 149. Branchlets and 

 petioles covered with short appressed hairs, the former cylindrical 

 about 2J-4J lin. thick with hollow internodes |-1J in. long. Leaves 

 with 5-7 leaflets, which are oblanceolate-oblong, the median 6-10 in. 

 long and 2J-3J in. wide, passing into a very long (7 l.in.) narrow 

 acute apex, base acute passing into the petiole which is 5-10 lin. 

 long, margin sharply serrate-dentate, covered with a short grey 

 tomentum on the under face between the close network of veins, 

 lateral nerves numerous on each side, curving upwards ; petiole 6 in. 

 or more in length, with a longitudinal furrow. Stipules large, ovate, 



