Man iscus. | CLVI, CYPERACEH (CLARKE). 401 
Schum. in Engl. Pf. Ost-Afr. C. 122, (. Hildebrandtii, Boeck. in 
Flora, 1880, 436. 
Mile Land. British East Africa: Ukambi; Kitui, Hildebrandt 26541 River 
Sabaki, Gregory! Mombasa, Wakefield ! Rabai Hills, near Mombasa, Taylor] Ribe, 
Wakefield ! 
Mozamb. Dist. Zanzibar, Hildebrandt, 1074! Bojer ! German East Africa : 
Usambara; Tanga, Holst, 2014! Usaramo; Dar es Salaam, Kuntze, 214! East of 
the coast-range, Speke & Grant ! Rovuma River, Meller ! Portuguese East .Africa : 
Lower Zambesi; Tete, Peters / British Ceutral Africa: Nyasaland; Kondowe to 
Karonga, 2000-6000 ft., Whyte! Blantyre, Scott! Shire Highlands, Buchanan, 
26! Mandala, Scott-Elliot, 8505! Mount Malosa, 4000-6000 ft., Whyte! Zomba 
Plains, 2500-3000 ft., Whyte! Mount Mlanji, Whyte! Namasi, Cameron, 7! and 
without precise locality, Buchanan, 1429! 1430! 
The typical examples of this, with very white spikelets, appear easily recognisable, 
but they can hardly be distinguished from MM. tomaiophylius but by the more 
numerous nuts to the spikelet; they have the top of the stem #nd margins of the 
leaves smooth or more or less rough. The examples of Meller from the Rovuma 
River may represent another species; the spikelets are here browner, becoming a 
dusky brown, and they appear narrower and nearly terete. J find that they have 
the upper margins of the glumes very minutely ciliate as in typical 1. hemisphericus. 
They have the glumes, in imperfectly ripe heads, adpressed-erect; whereas in the 
typical M. hemisphericus the glumes are, in the perfectly ripe heads, obliquely 
Spreading. 
53. M. alpestris, C. B. Clarke. Wlabrous. Rhizome ‘short, 
horizontal. Stems 2-24 ft. long, at the top triquetrous and scabrous pr 
nearly smooth. Leaves ¥ the length of the stem, # in. broad, tough ; 
margins smooth or scabrous. [Umbel compound, 8 in. in diam. ; rays 
hardly 4+ in. long ; bracts 7-10, similar to the leayes, lowest ia foot long. 
Spikes shortly cylindric, 4+ in. broad, dense, yellowish-green. ‘Spikelets 
+ by .1, in., moderately compressed, maturing 4—6 nuts, flisarticulating 
in pne piece above the two lowest glumes. Glumes oblong-elliptic, 
obtuse, scarcely spreading. Nut 2 the length of the glume, linear- 
oblong, trigonous, brown. ‘Style 3-branched.—(yperus alpestris, K. 
Schum. in Engl. Pfl. Ost-Afr. v. 122. 
87 ‘Mozamb. Dist. German Fast Africa : ‘Kilimanjaro, 8250 ft., Volkens, 
$72! 
| 54. ML. Gregorii, (. B. Clarke in Journ. Bot. 1896, 225. 
Glabrous. Stem 1 ft. long, stout, nearly round, at the top obscurely 
trigonous, at the base nodose thickened. ‘Leaves several,.4 by} in., 
tough, scarcely scabrous on the margins. Umbel sunple, ‘condensed, 
? In. in diam.; rays 7-8, 0-} in. long ; bracts 4, similar tothe leaves, 
the lowest 4 in. long. Spikes 3 in. long and broad, ‘of 16 spikelets, 
straw-coloured. Spikelets nearly 4 by 4 Bie compressed, maturing 
6 nuts. Glumes ovate-oblong, obtuse, -ribbed, uitimately-adpressed- 
erect ; npper margins quite glabrous. Nut } the length of: the glume, 
troad-oblong, black. Style 4 the length of the nut; branches 3, long. 
Nile Land. British East Africa: River Tana, Gregory, 03! 
This species is close to UW. hemisphericus, differing by the shorter leaves. 
VOL. VIII, 2D 
