590 
CLVII. GRAMINE^E (Stapf). 
[Urochloa . 
flat or slightly depressed on the back, 5-nerved, the side-nerves 
approximate to the firmer flexures which usually bear a dense fringe 
of appressed or ultimately spreading white or purplish cilia up to 
over 1 lin. long, or are (rarely) only pubescent ; valvule broad-ovate, 
acuminate, shorter than the valve ; anthers f lin. long. Upper 
floret rotundate- elliptic, up to 1J lin. long, yellowish-green ; 
valve finely rugose towards the margins, otherwise delicately 
granular ; mucro J lin. long.— Panicum trichopus, PLochst. in Flora, 
1844, 254 ; K. Schum. in Engl. Pfl. Ost-Afr. C. 101 ; Lauza & Mattei, 
PI. Erythr. in Boll. Ort. Bot. Palermo, ix. 45 ; Chiov. in 
Result. Sclent. Miss. Stefanini-Paoli, i. 184. P. trichopus, var. 
lasiostachys, Stapf ex Cheval, Sudania, 34, 146, 159. P. papillosum , 
Fenzl ex Steud. Syn. PI. Glum. i. 100. P. trichopodon, A. Rich. Tent. 
FI. Abyss, ii. 369 ; Durand & Schinz, Consp. FI. Afr. v. 766. Iielopus 
trichopus, Steud. Syn. PI. Glum. i. 100. Eriochloa trichopus, Benth. 
in Journ. Linn. Soc., Bot., xix. 39, and in Benth. & Hook. f. Gen. 
Plant, iii. 1099 ; Martelli, Florul. Bogos, 91 ; Schweinf . in Bull. Herb. 
Boiss. ii. App. ii. 17 ; Durand & Schinz, Consp. FI. Afr. v. 739 : 
Chiov. in Ann. Istit. Roma, vi. 165, and vii. 62 (excl. var.). 
Upper Guinea. French Sudan : Timbuctu District ; Taradii, Chevalier , 
2287 ! 2288 ! 
North Central. Bagirmi : Erguig District ; Nigui, Chevalier, 9463 ! Central 
Chari region : Koulfe, Chevalier, 8809 bis ! 
Nile Land. Kordofan : Abu Haraza, Pfund, 116! Katul-Gombara, 
Pfund, 194 ! and in fields, without precise locality, Kotschy, 74 ! Eritrea r 
Beni Amer ; Mount Damba, Pappi, 5983 ! Abyssinia : Sarnen, Tacazze 
Valley, Schimper, 1656 ! Dehli Dikeno, Schimper, 1161 ! and without precise 
locality, Schimper, 365 ! South Abyssinia : Dereileh, Drake- Brockman, 101 ! 
Ogaden, Robecchi-Briccheti. Italian Somaliland : Torda plains, Paoli, 315 ! 
Kotschy’s specimens (no. 74) comprise both the fringed and unfringed forms. 
All the other specimens quoted here have the lower floret conspicuously fringed. 
Lauza and Mattei (PI. Erythr. in Boll. Ort. Bot. Palermo, ix. 46) 
distinguish a var. Chiovendce of Panicum trichopus. This is stated to be 
identical with the unnamed variety described by Chiovenda in Ann. Istit. Bot. 
Roma, vii. 62 (sub Eriochloa trichopus) and to differ in having larger more lance- 
olate spikelets with a mucronate denticulate -truncate attenuated lower glume 
almost as long as the spikelet, and a more copious fringe to the lower floret. 
Chiovenda’s plant was collected at Homare (Hamara ?) on the Ganale in south- 
eastern Abyssinia, whilst the specimens quoted by Lauza and Mattei were from 
Eritrea : Beni -Amer ; on the upper Shotel River, Senni, 695 (a tall form) 
and Agordat, Senni, 697 (like the following a small state) ; Bogos, Keren, Senni , 
696. To judge by the characters given by the authors, the var. Chiovendce 
seems to come within the ordinary range of fluctuation of U. trichopus as 
understood here. 
A specimen collected by Holst at Muoa, Usambara (no. 3072) is doubtfully 
referable to this species. It has more slender culms divided into long slender 
branches upwards, more densely tomentose nodes and a flatter broadly obtuse 
lower glume without a central bristle, but the spikelets are broad-ovate, long- 
fringed, and very densely packed as in U. trichopus. 
3. U. pullulans, Stapf. Perennial from a short premorse rhizome 
with extra vaginal innovations covered in the bud-state with whitish - 
or yellowish-tomentose thin cataphylls, the buds ovoid, plump. 
