Mariscus. | CLYI. CYPERACEA (CLARKE). 395 
above the two lowest empty glumes, maturing 1 nut; lowest empty 
glume much exceeding the second, lanceolate, bristle-tipped. Nut- 
bearing glume ovate, obtuse, 11-13-ribbed, not keeled. Nut ? the 
length of the glume, linear-oblong, trigonous; style-branches 3, much 
exserted.—Cyperus Rohifsii, Boeck. in Flora, 1882, 13; Engl. Hoch- 
gebirgsfl. Trop. Afr. 144. 
Nile Land. LKritrea: Mount Alam Kale, Schweinfurth Gf Riva, 1476! 
Abyssinia, 8300 ft., Rokifs & Stecker (ex Boekeler). British East Africa: Taita; 
Mount Ndi, Scott-Elliot, 6191! 
39. M. procerus, A. Rich. Tent. Fl. Abyss. ii. 489, not of 
Schrader. Glabrous. Rhizome horizontal, stout. Stems 13-24 ft. 
long, at the top triquetrous and smooth or nearly so. Leaves } the 
length of the stem, 4} in. broad. Umbel simple; rays 8~10, up to 
1-1} in. long; bracts 4—6, similar to the leaves, lowest up to 7 in. long. 
Spikes 1} by $ in., exactly cylindric, with 20-40 distinct spikelets 
Spreading at right angles, bright-red in flower, red-brown in fruit. 
Spikelets }-1 in. long, oblong or lanceolate, hardly compressed, often 
4-flowered, maturing 3—2 nuts, disarticulating in one piece above the 
two lowest empty glumes. Nut-bearing glumes ovate, obtuse, strongly 
9-13-ribbed, hardly keeled, hardly remote but (even before the nut is 
ripe) obliquely and rigidly spreading. Nut 3} the length of the glume, 
broadly oblong, trigonous, black-brown. Style } the length of the nut ; 
branches 3, long, much exserted.—C. B. Clarke in Durand & Schinz, 
Conspect. Fl. Afr. v. 591. M. Richardi, Steud. Syn. Pl. Glum. ii. 66. 
M. cupreus, Hochst. ex Boeck. in Linnea, xxxvi. 367; C. B. Clarke 
in Durand & Schinz, Conspect. Fl. Afr. v. 586 (excl. the syn. of 
Steudel). Cyperus quadriflorus, Boeck. in Linnea, xxxvi. 367 ; 
Schweinf. in Bull. Herb. Boiss. ii. Append. ii. 104. C. impubes, Steud. 
Syn. Pl. Glum. ii. 45. 
Nile Land. Abyssinia: Tigre; near Assai, Quartin-Dillon! British East 
Africa: Lake Elmeteita, 6000~7000 ft., Scott-Elliot, 6411! 
40. M. thomensis, (. B. Clarke in Durand & Schinz, Conspect. 
Fl. Afr. vy. 594. Glabrous. Stems 1 ft. long, slender, at the top 
trigonous and smooth. Leaves } the length of the stems, } in. broad, 
green. Umbel simple ; rays 6-8 up to 1 in. long ; bracts 6, similar to 
the leaves, lowest up to 5 in. long. Spikes } in. long, ovoid or globose, 
dense, from green-straw-colour to yellow-straw-colour. Spikelets 
$+} in., maturing 3-2 nuts, falling off in one piece above the two 
lowest (not aristate) glumes. Glumes remote (each nearly clear above 
the one below it) ovate, subobtuse, 11-ribbed. Nut % the length of the 
glume, ellipsoid. Style short; branches 3, long—Cyperus flavus, 
Henriques in Bolet. Soc. Brot. v. 209; not of Boeck. 
12 Lower Guinea. Island of St. Thomas, Moller in Fl. Afr. Exsicc. Conimbric., 
3 | 
This plant does not remind me of the American Mariscus flavus. 1 think it 
may prove only one more variety of M. sieberianus. 
