Themeda .] 
CL VII. GRAMINEiE (Stapi). 
419 
hairy ; spath.es (towards the margins) and involucral spikelets or at least the 
latter moderately to very sparingly hispid, or if more densely so then the hairs 
stiff ; hair-tubercles pale ; lateral spatheoles nearly always glabrous. 
This includes the Anthistiria ciliata, hispida, Nees (FI. Afr. Austr. 121) but 
not A. hispida, Tliunb., which is Tristachya leucolhrix, Trin. The only African 
specimen referred by Hackel to his var. major — the remainder are Sino- 
Japanese and Indian plants — belongs here (Dschadscha, Abyssinia, Schimper). 
A form microstachya — with involucral spikelets 3^-4^ lin. long, and a form 
macrostachya — with spikelets up to lin. long and awns up to 3 in. long, mark 
Mie extremes between which this form fluctuates. Common also in South Africa. 
P punctata. Like the preceding, but the spathes, spatheoles, and involucral 
spikelets with copious and somewhat soft hairs which spring from small dark 
to jet-black tubercles. No form microstachya has been observed so far in this 
group. Distributed by Schimper as Anthistiria punctata and described under 
hat name by A. Richard. 
y Burchellii. As to colour like the preceding, but glabrous in all parts ; 
involucral glumes 4-6^ lin. long; awn from 2 to over 3 in. long. This is Hackel’s 
variety Burchellii from Griqualand West. Also in Orange Free State, Trans- 
vaal and Natal and in a state approaching punctata (with scanty black-tubercled 
.hairs) in Madagascar. Very near the Australian T. australis. 
8 qlauca. All parts conspicuously glaucous and glabrous ; involucral spike - 
lets from 4 to over 6 lin. long, awns 2-24 in. long. This is ForskaFs original 
T. triandra from Yemen. It is also the predominant form in Algeria. 
A form (8 I a l 1 8 ) which might be described as a rather glaucous link between 
vars. hispida and punctata was described by Boissier ( Diagn . PI. Or. ser. i. 
fasc. 13, 72) as Anthistiria syriaca and subsequently as A. ciliata, y syriaca 
(FI. Or. v. 460), from Syrian specimens. Chevalier’s specimens of T. triandra 
from the upper Niger basin belong here. Another form (a : 8, microstachya ) 
is Boissier’s Anthistiria ciliata, var. brachyantha (FI. Or. l.c. A. brachyantha, Boiss. 
Diagn. l.c. 71). The only Tropical African specimen comparable with it comes 
from Usambara(£ToZ^, 8741). Retz’s Anthistiria imberbis approaches var. Bur- 
chcllii and var. hispida, f. microstachya, very closely. It differs from the former 
in its lower stature, short involucral spikelets (4-5 lin.) and awns (lj-l§ in.) and 
the frequent presence of 1- 3 rarely more tubercle-based stiff hairs near the tips 
of the lower glume of the involucral spikelets, from the latter mainly in its low 
growth and the scarcity or absence of tubercle-based hairs on the involucral 
spikelets. It is rather uniform throughout a wide area in the West and South 
of Cape Colony, mingling occasionally with var. hispida, but replaced by it 
and by var. Burchellii in the Eastern and North-eastern parts of South Africa. 
Upper Guinea. French Guinea : Fouta Jallon ; between Timbo and Diting, 
(8 : a: P) Chevalier, 18503 ! French Sudan ; San (8 : a : 1 8 ), Chevalier, 2362 ! 
Nile Land. Eritrea : Mensa ; Geleb, (P) Schweinfurth, 1407 ; Rora Uali- 
caue, 6250 ft., Pappi 6s Terracciano, 2037, 2039, 2072. Amasen ; Amara 
plateau, 7200 ft., (P) Schweinfurth, 628, Tellini, 387, (P) Pappi, 2173; Lesa 
Mountains, Pappi, 4625, 4706, 4732, 4894; Addi Nefas, Pappi, 4157, 4164; 
Mount Bizen, gregarious in open grassland, 6250 ft., Schweinfurth 6s Biva, 
2026! Ambelaco, near Maldi, 6550 ft., Schweinfurth, 99; Saganeiti, (P) 
Schweinfurth, 1742, Micheletti, 126 ; Dembelas ; upper reaches of the Leito- 
Barka, forming turf, 7200 ft., Schweinfurth, 27. Maragus; Koheito plateau, 
8500 ft., Schweinfurth, 28, 29. Assaorta ; Mount Urug, 4900 ft., Pappi, 
3377 ; Mount Dyot, 4000-6000 ft., (P) Pappi, 578; Ocule Cusai ; Soyra 
Mountains, 9200-9850 ft., Pappi, 1270; Sarae; Gaza-Gobo, 5900-6550 ft., 
Pappi, 210. Abyssinia : Tigre ; Mount Scholoda, (P) Schimper, 73 ! Amba 
Sea, 6000-9000 ft., (j8) Schimper, 1054 ! Memsah, (P) Quartin DillorT; Simen ; 
near Dochli, (P) Schimper, 1555 ! Jaja, 6000 ft., Schimper, 383 ! and without 
precise locality, (P) Schimper, 360 ! Boran Country ; Lake Harimiya, (P) 
Drake- Brockmann, 25 ! and without precise locality, "Stordy ! British Somali- 
land : Dara-as, (P) Miss Cole ! and without precise locality, (approaching 8) 
Lort- Phillips ! Socotra : above Kischen, (o : 8 , f. microstachya) Schweinfurth , 
