24 RUBIACE (Sond.) [Pentanisia. 
salver-shaped or funnel-shaped, 4 lobed. Stigma bifid or undivided. 
Capsule crowned, 2-celled ; nuts 1-seeded, dividing into 2 parts from 
the apex ; the one part closed by the adnate dissepiment, the other 
open. Seed oval-oblong, marked inside by a longitudinal furrow. DC. 
prod. 4, P. 552. 
Herbs or sub-shrubs, stems or branches tetragonal. ‘Leaves opposite. Stipules 
combined with the petioles, sheathing, fringed by numerous bristles. Flowers ax- 
illary, sessile, crowded. Name from o7epua, a seed, and axwxn, a point, in allusion 
to the capsule being crowned by the calycine points. 
1, S. Natalensis (Hochst. in pl. Krauss.) ; stem erect, glabrous ; 
leaves linear-lanceolate or linear, with revolute margins, glabrous, 
sometimes scabrous on the middle nerve beneath ; stipules rigid, with 
5 bristles on each side ; flowers glomerate, semi-verticillate ; stamens 
sub-inclosed ; capsule crowned by the calyx-teeth. Diodia elongata, 
E. Meyer. in Herb. Drege. 
Has. Natal, Krauss. 328; Gueinzius, 516; Gerr. ¢ M'K., J. Sanderson, near Glen- 
filling, on the Key and Omblas, Drege. Dec.—April. (Herb. Sd., D.) 
Stem 1-2 feet high, simple or branched. Leaves 1-2 inches long, 2-3 lines broad, 
paler beneath, the upper ones smaller. Heads of flowers the size of a large pea, or 
a small hazelnut. Flowers 1 line long. 
XVI. PENTANISIA, Harv. 
Calyx-tube obovate or turbinate, limb with 2 or 3 (rarely 4) elongate, 
linear-subulate lobes, and some (3-4) small accessory ones. Corolla 
salver-shaped, with a long tube, a bearded throat, and a 5-, rarely 
4-lobed limb. Stamens 5 or 4, inserted in the throat, subexserted ; an- 
thers oblong. Ovary 2-celled, cells 1-ovulate. Style filiform ; stigma 
bifid, with linear-lobes. Capsule coriaceous, didymous, crowned by the 
calyx-lobes, bipartite into 2, monospermous, indehiscent nuts. Seed 
subtriquetrous, plano-convex. Lond. Journ. Bot, 1842, p. 21. Diotocar- 
pus, Hochst, in Reg. Bot. Zeitz, 1843, p. 70. 
Perennial herb, with a tuberous root, a tetragonal or compressed stem, opposite 
nerved leaves, on each side with 3-4-fid setaceous stipules ; and pedunculated, 
terminal, capitate, sometimes spiked flowers. Name from eve, five, and avicos, 
unequal; alluding to the unequal calycine lobes, 
1, P. variabilis (Harv. Ll. c. p.) 
Var. a, latifolia; stem erect or ascending, hairy or hirsute; leaves elliptic, ovate 
or oblong, acute, hairy or nearly glabrous ; flowers disposed in umbel-like spikes. 
P. variabilis, B. latifolia, Hochst. l.c. P. variabilis, Harv. 
Var. 8. intermedia; stem erect, downy, or as well as the leaves glabrous or nearly 
s0 ; leaves oblong-lanceolate or lanceolate, narrower at the base ; flowers disposed 
in umbel-like, rarely interrupted spikes. P. variabilis, Harv. Crusea variabilis et 
lanceolata, E. Mey. in Herb. Dreg. Declieuxia prunelloides, Klotzch, E. Z. n. 2301. 
Diotocarp. prumelloides, Hochst. l, ¢. 
Var. 7. glaucescens ; stem erect, as well as the leaves glabrous ; leaves lanceolate 
or linear-lanceolate, glaucous-green, obtuse or narrower at the base ; flowers disposed 
in oblong, interrupted spikes. P. glaucescens, Harv. 1. c. Orusea glaucescens, E. Meyer. 
Pentanisia et Diotocarpus angustifolius, Hochst. 
Has. Mountains, var. a., near Port Natal, Drege, Gueinzius, 513. Plant, 33. Dr. 
Sutherland, J. Sanderson, Gerr. § M‘Ken, Krauss. Var. B. Winter- and Katrivier- 
berge, Caffraria, E.§ Z., H. Bowker, near Port Natal, Krauss. Drege. Var. y. neat 
