Lsoglossa. | XCVIII. ACANTHACEZ (CLARKE). 229 
1. I. glandulifera, Lindau in Engl. Jahrb. xx. 54. Herb, 
4-10 ft. high. Leaves 3 by 14 in. (or sometimes up to 8 by 3 in.); 
elliptic, acuminate, very sparsely hairy, base very narrowly truncate, 
subauricled ; petiole up to 1-2 in. long; upper leaves smaller, often 
sessile, subcordate. Panicle often 6 by 3 in., terminal, very loose, 
sparsely glandular hairy ; bracts 4 in. long, linear. Calyx ,', in. long, 
subequally 5-fid nearly to the base; segments linear-lanceolate, with 
few scattered glandular many-celled white hairs, otherwise glabrous. 
Corolla $~1 in. long, light red, nearly glabrous; tube cylindric-funnel- 
Shaped, much longer than the lips. Anther-cells muticous, widely 
separated one over the other; pollen globose, compressed, smooth. 
Capsule % in. long (whereof } in. is a cylindric stalk), narrow, 4-seeded; 
seeds small, scabrous with long tubercles.—Lindau in Engl. & Prantl, 
Pflanzenfam. iv. 3 B. 344. 
Upper Guinea. Cameroons: Buea, 5000 ft., Preuss, 746! near Mimbia, 
3900 ft., Preuss, 1062 ! Cameroon Mountain, 7000 ft., Mann, 1972! Johnston, 62! 
Kalbreyer, 134! Fernando Po, 4000 ft., Mann, 579 ! 
2. I. nervosa, C. B. Clarke. Herb, 5 ft. high. Leaves up to 
34 by 2 in., rhomboid-ovate; nerves beneath prominent, scabrous 
hairy; base acuminate; petiole 14 in. long; uppermost leaves smaller, 
nearly sessile, subcordate. Panicle up to 12 by 8 in., glandular hairy. 
Corolla 3 in. long, white; tube longer than the lips; otherwise nearly 
as I. glandulifera. 
Upper Guinea. Cameroon Mountain, 7000-8000 ft., Mann, 2009! Johnston, 
3! 
“Nearly allied to, if not identical with, Z, laxa,” Oliv, in Trens. Linn. Soe. 
ser. 2, Bot. ii. 346. 
3. I. laxa, Oliv. in Trans. Linn. Soc. ser. 2, Bot. ii, 340. 
Branches glabrate, with many longitudinal cystoliths. Leaves 5 by 
1} in., narrowed at both ends, glabrate ; petiole } in. long. Panicle 
7 by 3 in,, terminal, lax, hairy; floral leaves up to 4 by ;'; in., mostly 
small, linear ; pedicels ;!,—;; in. long; bracteoles 0 or most minute. 
Calyx 4 in. long, divided subequally nearly to the base; segments 
linear, obtuse, pubescent, and with long several-celled scarious hairs. 
Corolla 3-2 in. long; tube about as long as the lips, sparingly hairy 
without, pink. Filaments glabrous; anther-cells oblong, tail-less, one 
entirely below the other; pollen lenticular, with one stopple in the 
centre of each face. Capsule } in. long, stalked, perfecting 4 seeds 
(not seen ripe).—Engl. Hochgebirgsfl. Trop. Afr. 394 ; Lindau in Engl. 
& Prantl, Pflanzenfam. iv, 3 B. 344, and in Engl. Pfl. Ost-Afr. C. 372. 
Mozamb. Dist. German East Africa: Kilimanjaro, 7000 ft., Johnston, 11 ! 
On the lower portion of the stems it is probable, from the analogy of allied species, 
that long petioles occur ; but Oliver’s statement, “petioles }~2 in, long,” was taken 
from a fragment. 
Var. pilosa, Schweinf. in Héhnel, Zum Rudolph-See u, Stephanie-See, Sonder- 
abdr. 7; Engl, Hochgebirgsfl. Trop. Afr, 394; Lindau in Engl. Pf. Ost-Atr. C. 372. 
