Isoglossa.] xcviii. acanthace^ (clarke). 229 



1. I. glandulifera, Lindau in Engl. Jahrb. xx. 54. Herb, 

 4-10 ft. high. Leaves ii by 1^ in. (or sometimes up to 8 by 3 in.); 

 elliptic, acuminate, very sparseJy hairy, base very narrowly truncate, 

 subauricled ; petiole up to 1-2 in. long ; upper leaves smaller, often 

 sessile, subcordate. Panicle often (J by 3 in., terminal, very loose, 

 sparsely glandular hairy ; bracts ^ 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 J 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. Cameroous: Buea, 5000 ft., Freuss, 746! near MimbiH, 

 3900 ft., Freuss, 1062 ! Cameroon Mountain, 7000 ft., Mann, 1972! Johnston, 62! 

 Kaibreyer, 134, ! Fernando Po, 4000 ft., Mann, 579 I 



2. I. nervosa, C, B. Clarke. Herb, 5 ft. high. Leaves up to 

 3 J by 2 in., rhomboid-ovate; nerves beneath' prominent, scabrous 

 hairy; base acuminate; petiole 1^ in. long; uppermost leaves smaller, 

 nearly sessile, subcordate. Panicle up to 12 by 8 in., glandular hairy. 

 Corolla J in. long, white ; tube longer than the lips ; otherwise nearly 

 as /. glandulifera. 



Upper Guinea. Cameroon Mountain, 7000-8000 ft., Mann, 2009 ! Johnston, 

 63! 



"Nearly allied to, if not identical with, I. laxa," Oliv. in Trrns. Linn. So-:, 

 ser. 2, Bot. ii. 346. 



3. I. laxa, Oliv. in Trans. Linn. Soc. ser. 2, Bot. ii. 345. 

 Branches glabrate, with many longitudinal cystoliths. Leaves 3 by 

 IJ in., narrowed at both ends, glabrate; petiole J in. long. Panicle 

 7 by 3 in., terminal, lax, haiiy ; floral leaves up to J by yV in., mostly 

 small, linear ; pedicels 2V~tV ^°* ^^^gi bracteoles U or most minute. 

 Calyx J in. long, divided subequally nearly to the base; segments 

 linear, obtuse, pubescent, and with long several-celled scarious hairs. 

 Corolla J-§ in. long ; tube about as long as the lips, sparingly hair}* 

 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 J in. long, stalked, perfecting 4 seeds 

 (not seen ripe). — Engl. Hochgebirgsfl. Trop. Afr. 394 ; Lindau in Engl. 

 <fe Prantl, Pflanzenfam. iv. 3 B. 344, and in Engl. Pfl. Ost-Afr. C. 372. 



Mozamb. Blst. 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. 



\Q.T.'pilosa, Schweinf. in Hohnel, Zum Rudolph-See u. Stephanie-See, Sondei- 

 abdr, 7; Engl. Hochgebirgsfl. Trop. Afr. 394; Lindau in Engl. Pfl. Ost-Afr. C. 372. 



