418 CLVI, CYPERACEH (CLARKE). [ Fimbristylis. 
Mozamb. Dist. Zanzibar, Kirk / Hildebrandt, 10583! 
This species is as though a very large form of F. ferruginea. It differs in 
the glumes being glabrous on the back, and in the larger, harder, darker-coloured 
spikelets. . 
9. F. nigritana, (. B. Clarke in Durand & Schinz, Conspect. Fi. 
Afr. v. 608. Glabrous. Stems exceeding 2 ft. in length. Umbel 
compound, large, with 74 spikelets; bracts 1-14 in. long. Spikelets 
solitary, up to } by } in., dull chestnut-coloured. Glumes ovate, 
acuminate, acute mucronate; otherwise as F. longiculmis (or large 
F. ferruginea). 
Upper Guinea. Niger Territory: Nupe, Barter, 623! 
This species is very near F. spadicea, Vahl, a native of Tropical America, from 
which it mainly differs in the glumes being conspicuously acuminate. 
10. F. exilis, Roem. d: Schultes, Syst. Veg. ii. 98. Annual, hairy , 
Stems tufted, 4-16 in. long, rather slender, usually with patent hairs 
scattered through their whole length, but sometimes nearly glabrous. 
Leaves 4—} the length of the stem, up to 1, in. broad, hairy or glabrate, 
sheaths always hairy. Umbel of 3-14 pedicelled spikelets; bracts 4-3, 
about as long as the umbel. Spikelets }-} by } in., 10—12-flowered, 
pale ferruginous usually much tinged with chestnut. Glumes ovate, 
acute, pubescent ; keel green, excurrent into a mucro. Stamens 3-2. 
Style rather shorter than the nut, nearly glabrous; branches 3; base 
dilated, subpyramidal, horizontally truncate, with a constriction above 
the nut. Nut rather large, often } the length of the glume, trigonous 
or triquetrous, obovoid or narrowed much at the base so as to be pytl 
form, transversely wrinkled, smooth or obscurely tubercled, passing from 
white to pale brown.—C. B. Clarke in Durand & Schinz, Conspect. Fi. 
Afr. v. 604 partly, in Bull. Herb. Boiss. iv. Append. iii. 31, and in Dyer, 
Fl. Cap. vii. 201; Durand & Schinz, Etudes Fl. Congo, i. 301; Durand 
& De Wild. in Comptes-rendus Soc. bot. Belg. xxxvi. 89; Urban, 
Symb. Antill. ii. 80; Rendle in Cat. Afr. Pl. Welw. ii. 123. /. his- 
pidula, Kunth, Enum. ii. 227; Benth. in Hook. Niger FI. 554; Boeck. 
in Peters, Reise Mossamb. Bot. 545, in Linnea, xxxvii. 27, in Flora, 1879, 
564, and in Engl. Gazelle Reise, Bot. 17; Schweinf. Beitr. Fl. Aethiop. 
216; Oliver in Trans. Linn. Soc. xxix. 168; Ridley in Trans. Linn. 
Soc. ser. 2, Bot. ii. 152; K. Schum. in Engl. Pf. Ost-Afr. C. 124. 
F, rivularis, Steud. Syn. Pl. Glum. ii. 109. F. vestita, Steud. Syn. Pl. 
Glum. ii. 112. F. Hildebrandtii, Ridley in Trans. Linn. Soc. ser. 2, 
Bot. 11.155; K. Schum. in Engl. Pfl. Ost-Afr. C. 125. Scirpus hispr 
dulus, Vahl, Enum. ii, 276; Schumach. Beskr. Guin. Pl. 31. _S. Hilde 
brandtii, Boeck. in Flora, 1875, 263. S. granulato-hirtellus, Boeck. 1» 
Verh. Bot. Ver. Brandenb, xxxi. 179. Jsolepis Perrottetit and J. con- 
socialis, Steud. Syn. Pl. Glum. ii. 318. J. pubiculmis, Hochst. ex 
C. B, Clarke in Durand & Schinz, Conspect. Fl. Afr. v. 605. Trichelostylis 
sp., T. Thoms. in Speke, Nile, Append. 654. 7’. pilosula, Nees ex Boe - 
in Linnea, xxxvii. 28. 7’. schimperiana, Hochst. ex Boeck. in Linnea, 
XXXVil. 28, 
Upper Guinea. Senegal, Sieber, 4! 102! Roger, 114! Perrottet, 311! 
