Digitaria .] clvii. gramine.® (Stapf). 441 
Cheval, Sudania, 32, 159. Panicum ciliare, Retz. Obs. iv. 16 (?) ; Roxb. FI. 
Ind. ed. Carey, i. 290; A. Rich. Tent. FI. Abyss, ii. 360; not of Koel. P. 
fimbriatum, Presl, Rel. Haenk. i. 298 ; Kunth, Enum. i. 81. P. sanguinale, 
var. ciliare, Franch. Contr. FI. Congo Fran<?. 46 ; Eyles in Trans. Roy. Soc. S. 
Afr. v. 301 ; not of Doell. P. sanguinale, var. blepharanthum, Hack, in Durand 
& Schinz, Consp. FI. Afr. v. 762 and ex K. Schum. in Engl. Pfl. Ost-Afr. C. 
100. P. sanguinale, var. macrostacliyum, Hack, in Durand & Schinz, l.c. 763. 
Syntherisma fimbriatum, Nash in Bull. Torr. Bot. Club, xxv. 302. 
Upper Guinea. Senegal: Casamance ; Ziguinchor, Chevalier, 2188 bis! 
and without precise locality, Richard ! Sierra Leone : without precise locality, 
Welwitsch, 2937 (partly). 
North Central. Bagirmi : Nigai, Chevalier, 9462 ! 
Nile Land. Nubia : Berber, Schweinfurth, 642 ! Eritrea : Beni Amer ; 
Mount Damba, Pappi, 5976 ! Carajai, Pappi, 6637 ; Munsura, Pappi, 7195. 
Maragus : Cohait, 5575 ft., Pappi, 1014. Abyssinia : Sana ; on the sandy 
banks of the Taccazze near Jelajeranne, Schimper, 1616 ! Samen ; in shady 
places near Mawerr, 3000-4000 ft., Schimper, 2162 f^TTwarra, 3000-3500 ft., 
Schimper, 121 ! 
Lower Guinea. Gaboon, Griffon du Bellay. Loango, Lecomte. 
Mozambique Distr. German East Africa : Kagelii, Fischer, 642. 
Along with var. Linkii in the tropics of both hemispheres, but very scarce 
in America, rarely found beyond the tropics. The peculiar indumentum of the 
spikelets, which in the mature state leads to the formation of spreading fringes, 
may extend to all spikelets alike or it may be, at least in its perfect development, 
confined to the long-pedicelled member of each pair of spikelets or only to some 
of them, in which case the indumentum of the fringeless spikelets approaches 
more or less that of var. Linkii. 
Var. nubica, Stapf. Upper glume equalling half of the upper floret or shorter ; 
spikelets quite glabrous and smooth.— P. sanguinale, var. cegyptiacum, Hack, 
in Durand & Schinz, Consp. FI. Afr. v. 762 (partly). 
Nile Land. Nubia : Wadi Haifa, Kralik ! between Old Dongola and Mero- 
wah, Bromfield ! Berber, Schweinfurth, 642 (partly) ! Khartoum, Kotschy, 
429 ! Eritrea : Tingar, Elirenberg ! 
This variety approaches D. sanguinalis, Scop. , but may be distinguished by the 
perfectly smooth nerves of its barren florets and the mostly narrower and more 
acuminate spikelets. It seems to be confined to the tropical portion of north- 
west Africa. D. cegyptiaca, Retz., as generally understood — I have not seen the 
original — is the perfectly glabrous state of D. sanguinalis with the scabrid 
nerves of the barren florets characteristic of that species. D. sanguinalis, 
Scop, (sensu stricto), does not seem to occur in tropical Africa, as Pilger (in 
Engl. Jahrb. xxx. 118) also observes. 
10. D. acuminatissima, Stapf. Annual. Culms erect from a 
shortly ascending and rooting base, over 2 ft. high, sometimes 
apparently tall and rather stout, quite glabrous, 6- or more-noded. 
Leaf-sheaths somewhat loose and firm, quite glabrous and smooth 
or with a very few tubercle-based hairs near the mouth ; ligules 
short, rounded, membranous, about 1 lin. long ; blades linear from 
an equally wide or slightly narrowed base, gradually tapering to a 
very acute point, up to over 6 in. by 2-3 lin., flat, rather firm, 
flexuous, quite glabrous or with a few tubercle-based hairs near the 
base, slightly rough on both sides, margins finely cartilaginous and 
rough, midrib very slender, whitish, lateral nerves very numerous 
and close, fine. Racemes up to 20, sessile, subdigitate on a common 
angular upwards rough axis (1-3 in. long), erect or suberect, fastigiate, 
