Sericostachys.] CVI. AMARANTACEE (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 tin. long . ° ° . 1. S. scandens. 
Leaves hairy. Perianth 4 in. long ° : . . 2. S. tomentosa. 
1, S. scandens, Gilg et Lopr. in Engl. Jahrb. 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 4 the length of the filaments, quadrate, toothed at the top. 
—Lopr. in Malpighia xiv. 449. 
Upper Guinea. Cameroons: Yaunde, Zenker, 1420! 
Nile Land. Uganda: Mawokota, 3900 ft., Brown, 167! 
2. S. tomentosa, Lopr. in Engl. Jahrb. xxvii. 51. A tomentose 
robust climber, 30 to 40 ft. long. Leaves opposite; blade 3 by 14 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. 
Pas Land. Uganda: Ruwenzori; Kivata, 6600-9000 ft., Scott-Elliot, 
7657 ! 
20. ARTHRZERUA, Schinz in Engl. & Prantl, Pflanzenfam. 
iii, 1A, 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. Leubnitzize, Schinz in Engl. & Prantl, Pllanzenfam. iii. 1A, 
110, jig. 63. Leaves } in. long, reduced to ovate triangular scales.— 
QO. Kuntze in Jahrb. Kénigl. Bot. Gart, Berlin, iv. 272; Schinz in 
Bull, Herb. Boiss, v. Append. iii. 66. rua desertorum, Engl. in 
Engl. Jahrb. x. 7. 
