106 XCVIII. ACANTHACEE (CLARKE). [ Acanthus. 
bracteoles 2, ovate, spinous or unarmed, or linear, or 0, A genus very 
close to Blepharis, which is absolutely separated by the hairy seeds. 
Species 8 or 10, extending from South Europe and Africa to Malaya, Australia, 
and Polynesia. 
Bracts very spinous; pollen oblong-ellipsoid; seeds 
shining brown. 
Leaves spinous, lobed, often subpinnatifid. 
Anticous calyx-segment 1 in. long, with entire tip 1. A. arboreus. 
Anticous calyx-segment 3 in, long, shortly 2-lobed. 
Lobes of anticous calyx-segment short, rounded. 2, A. eminens. 
Lobes of anticous calyx-segment ending in short 
spines . . . . 
Leaves serrate, hardly lobed 
Leaves subentire. 
Leaves elongate, obovate-lanceolate 
Leaves elliptic, short acuminate, 
Anticous calyx-segment nearly 1 in. long . 
Anticous calyx-segment 4-3 in. long . . 
Bracts not spinous on the margin ; pollen short-ellipsoid 
(subglobose) ; seeds corrugated . 
. A, montanus. 
. A. Barteri. 
me OO 
nr 
. A, mayaccanus. 
6. A. latisepalus. 
7, A, Dusenii. 
8 
. A, ilicifolius. 
1. A. arboreus, Yorsk. Flor. Zgypt.-Arab. 115. Pubescent or 
glabrate, stout shrub 3-19 ft. high. Leaves up to 12 by 6 in. (often only 
half this size), pinnatifid half-way down, or lobate with doubly spinous 
margin ; petiole 0-} in. long. Spikes 3-1, terminal, up to 6-10 by 
2 in., often pubescent or hairy; bracts 1} by } in., ovate-lanceolate, 
acuminate, with many strong spines on the margin 1 in. long; 
bracteoles 1} by } in., spinous on the margins. ‘Posticous calyx-segment 
exceeding 1 in. in length, lanceolate, 3-nerved, spine-tipped ; anticous 
calyx-segment exceeding 1 in. in length, lanceolate, 2-nerved ; 2 inmost 
calyx-segments } in. long, elliptic-lanceolate, mucronate. Corolla 1} in. 
long, rose or pale-purple. Capsule } by } in.—T. Anders. in Journ. 
Linn. Soe. vii. 37; Engl. Hochgebirgsfl. ‘Trop. Afr. 390; Lindau in 
Engl. & Prantl, Pflanzenfam. iv. 3B. 319. A. arboreus, vat: 
pubescens, T. Thoms. in Speke, Nile Append. 643; Oliv. in Trans. Linn. 
Soc. xxix. 129, t. 86. A. polystachius, Delile, Cent. Pl. Afr. 62, t- 1, 
fig. 2. A. pubescens, Engl. Hochgebirgsfl. Trop. Afr. 390; Lindau in 
Engl. Pf. Ost-Afr. C. 370, and in Ann. Istit. Bot. Roma vi. 76. 
4. Gaéd, Lindau in Engl. Jahrb. xx. 33, and in Engl. & Prantl, Pflan- 
zenfam. iv. 3 B. 319. Cheilopsis arborea, Nees in DC. Prod. xi. 272. 
Ch. polystachya, Moq.-Tand. in Ann. Se. Nat. sér. 1, xxvii. 230; Nees 
in DC, Prod. xi, 272; A. Rich. Tent. Fl. Abyss. ii. 151; Solms-Laub. 
in Schweinf. Beitr. Fl. Aethiop. 243. Ch. Steudneri, Solms-Laub. 
in Schweinf. Beitr. Fl. Aethiop. 243 in obs. Dilivaria ? polystachy% 
Endl. Gen. 703. 
Wile Land. Upper Senaar : Fazokl, Kotschy, 489 | Abyssinia : Dembea ; Gondar; 
Steudner, 1532! Begemeder ; near Gafat, Steudner, 1533! Schimper, 1534! 
Amora-Gettel, Schimper, 1535 ! and without precise locality, Plowden ! Somaliland : 
Coromma, Riva, 621! between Alghe and Oi, Riva, 1265! Maid, 5000-6000 ft. 
Hildebrandt, 1399! British East Africa: Uganda, Wilson, 94! Stuhlmann, 1350! 
Kavirondo; Nandi Range, Scott-Elliot, 7057! Victoria Nyanza, Stuhlmann, 895 ! 
