Cyperus. | CLVI. CYPERACEZ (CLARKE). 371 
—C. B. Clarke in Hook. f. Fl. Brit. Ind. vi. 617, and in Durand & Schinz, Conspect. 
Fl. Afr. v. 561 ; Rendle in Cat. Afr. PL Welw. ii. 119. C. dives, Delile, Fl. Egypte, 
5, t. 4, fig. 3; Kunth, Enum. ii. 71; Hochst. in Flora, 1841, i. Intell. 20; Steud. in 
Flora, 1842, 595; A. Rich. Tent. FI. Abyss. ii. 480; C. B. Clarke in Journ. Lim. 
Soe, xx, 293; Ridley in Trans. Linn. Soc. ser. 2, Bot. ii, 142. C. alopecuroides, 
Pres] in Oken, Isis, xxi. (1828) 271; Boeck. in Linnea, xxxvi. 322 (var. a only) ; 
Oliver in Trans. Linn. Soc. xxix. 166; Volk. Kilimand. 28 ; Engl. Hochgebirgsti. 
Trop. Afr. 143; Schweinf. in Bull. Herb. Boiss. ii. Append. ii, 49, not of Rottb ; 
K. Schum. in Engl. Pfl. Ost-Afr. C. 121. 
Upper Guinea. Cape Verd; Perrottet. 
Nile Land. Eritrea: Goura, 6800 ft., Schweinfurth & Riva, 920! Abyssinia : 
Tigre; streams near Adowa, Quartin-Dillon & Petit ! Schimper, 30! Modat; by 
streams in Aguar Valley, Schimper, 1101! and without precise locality, Schimper, 
186! 547! British East Africa: Niamniam; Nabambisso River, Schwein- 
JSurth, 3727! Ruwenzori 3; Semliki Valley, Scott-Elliot, 8052! Buddu, Stwhlmann, 
1187! Lake Baringo, Gregory, 57! Kangaga, Taylor, 32! Ukamba; Kiboko, in 
marshy rivers, Scott-Elliot, 2333 ! 
Lower Guinea. Angola: Golungo Alto; by streams near Sange, Welwitsch, 
ja ! Pungo Andongo; in marshy places between Condo and Quisonde, Welwitsch, 
39 ! 
South Central. Congo Free State ; Dewévre, 10,039! 
Mozamb. Dist. German East Africa: Karagwe; Little Lake Windermere, 
Speke § Grant, 480! Kilimanjaro, Zaylor/ Usambara; Muanamata, 2000 ft., 
Volkens, 2377 ! Portuguese East Africa: Lower Valley of the River Shire, Weller / 
British Central Africa: Nyasaland; Elephant Marsh, in the Shire Valley, Kirk ! 
Scott ! Lake Nyasa, Scott-Elliot, 8414! and without precise locality, Buchanan, 
865! Zambesi Valley ; Boruma, Menyharth, 1058. 
: Also in Egypt, Syria, Madagascar and India; but the variety cannot be dis- 
tinctly separated from the species (exaltatus itself), therefore neither can its area 
of distribution. 
111. GC, Pethericki, (. B. Clarke in Durand & Schinz, Conspect. 
Fl. Afr. v. 571. Very talland stout (only the 2 upper feet of stem 
present). Lowest bract very long, ? in. broad, very smooth, thick, and 
tough. Umbel large, compound, with large many-flowered cylindric 
spikes. Spikelets nearly 4 in. long, 36-flowered, pale yellowish- brown. 
Glumes thin, not strongly keeled, their margins (in the dried state) 
much incurved ; otherwise as (. exaltatus. 
Nile Land. British East Africa: banks of the Nile in Denka Territory, 
Petherick ! 
_ The softer less-keeled glumes, with incurved margins, cause this plant to 
“mulate C. alopecuroides, but the styles are all 3-fid, the nuts all acutely trigonous, 
and I think it may prove only another variety of C. exaltatus, 
os 112. C. immensus, (. B. Clarke in Journ. Linn. Soc. xx. 294. 
Stem at the top 4-3 in. in diam., acutely trigonous. Lowest bract in 
‘ome examples up to 1 in. wide. Umbel in the type (Pervillé, 483) 
must have exceeded 2 ft. in diam., very dense. Spikelets } by ,'; in., 
40-flowered, much compressed, hard, shining, yellow-brown ; wings of 
the rhachilla faleate, linear-lanceolate, yellow, early caducous. Glumes 
Strongly keeled, strongly mucronate ; otherwise as C. exaltatus.—C. B. 
