122 XCVIII. ACANTHACEE (CLARKE). [ Lepidagathis. 
Floral leaves without (or with very short erect) 
tails . . . . . . 18. L. peniculifera. 
Floral leaves and sepals with long recurved tails . 19. L. Meduse. 
**NEURACANTHOPSIS, — Posticous stamens with usually 
1-celled anthers. (Slender plants; floral leaves not 
uniseriate except somewhat in L. pallescens.) 
Heads strobilate ; floral leaves imbricate. 
Leaves narrow-oblong; floral leaves somewhat 
l-seriate . . . . . . . 20. L. pallescens, 
Leaves elliptic; floral leaves imbricate on all 
sides . . . . . . . . 21. ZL, calycina. 
Heads with narrower floral leaves, not strobilate. 
Leaves often 2 in. or more. 
Sepals with minute hairs, many gland-tipped. 
Spikes axillary and terminal . . . 22. L. glandulosa. 
Spikes all terminal . . . . 23, LD, laguroidea. 
Sepals with spreading white hairs, none gland- 
tipped : . . . . . 25. L. scabra. 
Leaves at most 1 by in... . . . . 24, L. hyssopifolia. 
1. L. scariosa, Nees in Wall. Pl. As. Rar. iii. 95. Young parts 
stellate-hairy. Leaves 2 by # in., elliptic or subovate, narrowed at 
either end, when mature minutely hairy above, grey tomentose beneath, 
feather-nerved, primary nerves raised on the under surface; petiole 
0-5 in. long. Heads terminal, ovoid, up to 1-14 in. in diam., 
innocuously prickly. Posticous sepal 4—} by 74,-} in., with many soft 
white and some gland-tipped hairs. Corolla 2-1 in. in total length. 
Posticous stamens with the anthers 2-celled but much narrower than 
those of the anticous stamens. Ovary hairy at the top. Capsule 4 in. 
long, 4-seeded.—Nees in DC. Prod. xi. 251; Wight, Ic. t. 467; 
C. B. Clarke in Hook. f. Fl. Brit. Ind. iv. 520; Lindau in Engl. & Prantl, 
Pflanzenfam. iv. 3 B. 313, in Engl. Pf. Ost-Afr. C. 368, and in 
Ann. Istit. Bot. Roma vi. (1896) 70. LZ. terminalis, Nees in DC. Prod. 
xi. 251; A. Rich. Tent. Fl. Abyss. ii. 146; T. Anders. in Journ. Linn. 
Soc. vii. 33; Zarb, Cat. Spéc. Bot. Pfund, 32. Volkensiophyton neura 
canthoides, Lindau in Engl. Jahrb. xx. 27, and in Engl. & Prantl, 
Pflanzenfam. iv. 3 B. 315, and in Engl. Pfl. Ost-Afr. CO. 369. 
Nile Land. Kordofan, Pfund, 307! 402! 428! Upper Senaar: Fazokl, 
Kotschy, 482! Eritrea: Ginda, 3000 ft, Schweinfurth & Riva, 2140! Abyssinia: 
below Sessaquilla, Schimper, 815! Togodele, Steudner, 1862! and without precise 
locality, Schimper, 692! 1920! Somaliland: Ahl Mountains, 5000-6000 ft., Hilde- 
brandt, 856! Ogaden, Riva, 290! 797! British East Africa: Taita ; Ndara Mountaip, 
2000 ft., Hildebrandt, 2459 ! 
386m Dist. German East Africa: Kilimanjaro; Lake Chala, Volkens, 
In Volkens, 318, type of Volkensiophyton, Lindau, I find the calyx of 5 segments 
(not 4 as given by Lindau) and the 2 posticous anthers 2-celled (not 1-celled as given 
by Lindau). The pollen is said in Lepidagathis to be honeycombed (which is not said 
of the pollen of Volkensiophyton); but the pollen is really the same; the reticulation 
of the extine in Lepidagathis is exceedingly shallow, and in places broken up and passing 
over into mere granulation, 
