Sericostachys.'] cvi. amarantace^ (baker and clarke). 71 



segments 5, subacute, muticous, glabrous. Stamens 5; filaments 

 linear to the base, the very short staminal tube having quadrate or 

 small staminodes between each 2 filaments ; anther-cells 2, oblong. 

 Ovary ovoid, glabrous; style linear; stigma small, capitate ; ovule 1, 

 from a basal funicle. — Scandent shrubs. Leaves opposite. Spikes 

 linear-cylindric, 4-6 in. long, panicled ; flowers rather large. 

 Species 2, endemic. 



Leaves glabrate. Perianth \ in. long . . . . \. S. scandens. 



Leaves hairy. Perianth ^ in. long . . . . 2. S. tomentosa. 



1. S. scandens, Gilg et Lopr. in Engl. Jahrh. xxvii. 51. A stout 

 climber, glabrate except the flower- spikes. Leaves opposite ; blade 

 3 by 1 in,, elliptic, narrowed at either end ; petiole ^ in, long. 

 Peduncles axillary, 1-3 in. long, each carrying 3 or 4 spikes. Flowers 

 densely approximate ; bract and bracteoles scarious. Perianth ^ in. 

 long. Hair on the sterile bracts twice or thrice as long as the perianth. 

 Staminodes J the length of the filaments, quadrate, toothed at the top. 

 — Lopr. in Malpighia xiv. 449, 



Upper Guinea. Cameroons : Yaunde, ZenJcer, 1420 ! 

 Nile Iiand. Uganda : Mawokota, 3900 ft., £rown, 167 ! 



2. S. tomentosa, Lop7\ in Engl. Jahrh. xxvii. 51. A tomentose 

 robust climber, 30 to 40 ft. long. Leaves opposite ; blade 3 by \\ in., 

 elliptic or ovate, shortly acuminate at the tip, obtuse at the base, hairy 

 on both faces ; petioles scarcely \ in. long. Spikes axillary, and forming 

 at the ends of the branches compound open panicles 1-2 ft, long. 

 Flowers densely approximate ; bract and bracteoles scarious ; hair on 

 the sterile bracts not much exceeding the perianth. Perianth \ in. 

 long. Staminodes very small, 2-toothed. — Lopr. in Engl. Jahrb. xxx. 

 26 in obs., t. 1, fig. P, Q, in Malpighia, xiv. 450. 



Nile Xiand. Uganda: Pvuwenzori; Kivata, 6000-9000 ft., Scott-MUot, 

 7657! 



20. ARTHR^RUA, Schinz in Engl. & Prantl, Pflanzenfam. 

 iii. lA, 109. 



Perfect flowers solitary. Perianth -segments 5, acuminate, scarious, 

 silky. Filaments 5, with short staminodes interposed ; anther-cells 2, 

 divergent at the base. Ovary with 1 ovule on a basal funicle ; style 

 linear. — Leaves opposite, reduced to scales. Spikes terminal, cylindric, 

 dense. Branches succulent, articulated. 



Species 1, endemic. 



1. A. Leubnitziae, Schinz in Engl, d- Prantl, Pflanzenfam. iii. lA, 

 110,^^. 63. Leaves J in. long, reduced to ovate triangular scales. — 

 O. Kuntze in Jahrb. Konigl, Eot, Gart. Berlin, iv. 272 ; Schinz in 

 Bull. Herb. Boiss. v. Append, iii. 66. jErua desertorum, Engl, in 

 Engl. Jahrb. x. 7. 



