118 XCVIII, ACANTHACEH (CLARKE). | Crossandra, 
Imperfectly known species. 
14. C. parviflora, Schweinf. d Volk. Liste Pl. Somal. 17. 
Nile Land. Somaliland: Salul torrent, Ghika,. 
This species is not described, but is said to be C. parviflora, Lindau, l.c. This 
should mean, Lindau in Ann. Istit. Bot. Roma vi. (1896) 72; but the species 
C. parviflora has not been found in that volume nor anywhere else. 
29. CRABBEA, Harvey partly ; Benth. et Hook. f. Gen. Pl. ii. 1092. 
Calyx-segments 5, acute, more or less unequal. Corolla 4—? in. long; 
lobes 5, subequal, in 2 lips; anticous 3-lobed lip folded down over the 
other in bud. Stamens 4, subsimilar ; filaments subglabrous ; anthers of 
2 muticous oblong cells, one a little lower, sometimes one cell smaller 
or hardly any; pollen globose, reticulate. Ovary glabrous; ovules 4-2 
in each cell; style glabrous, articulated on the ovary; one stigma 
a rhomboid short plate, the other nearly wanting. Capsule small, nar- 
row-oblong, 8—4-seeded ; seeds discoid,covered with fine simple hygro- 
scopic hairs.—Low shrubs; hairs simple, tawny. Inflorescence in dense 
axillary or peduncled heads; unilateral racemes (or scorpioid cymes) 
twisted and rolled up; bracts large, one fertile, one sterile, ovate or 
oblong, faleate, usually spine-toothed ; bracteoles 0. 
Species 6, in Tropical and South Africa. 
This genus has been arranged next Barleria, solely because of the bracts and 
heads. The numerous ovules, the 5 separate sepals, and the globose reticulated pollen, 
show that its real affinity must be sought elsewhere. 
Secondary nerves of leaves obscure ; cystoliths conspicuous. 
Heads subsessile ; posticous sepal linear. 
Leaves pubescent on the nerves, otherwise scarcely 
hairy . . : . . . . 1. nana, 
Leaves hairy on both faces, specially the lower 2. hirsuta. 
Heads peduncled ; posticous sepal elliptic-acuminate . 3. velutina. 
A, 
Secondary nerves of leaves conspicuous on the lower face reticulata. 
1. ©. nana, Nees in DC. Prod. xi. 162. Root woody; branches 
2-9 in. long, flexuous, fuscous, hairy. Leaves 4 by 1} in., oblong-elliptic, 
when mature scabrid hairy on the nerves beneath, otherwise glabres- 
cent, cystoliths prominent on the upper face, tip rounded, margl? 
hardly wavy-crenate, base narrowed ; petiole 0-4 in. long. Heads 
axillary, 1-2 in. in diam.; outer floral leaves 14 by 4} in., acute, 
glabrescent, shining, spinous teeth } in. long; fertile bract % in. long; 
oblong, falcate. Calyx % in. long, of 5 pale hairy linear subequal 
sepals. Corolla } in. long. Capsule $ in. long —T. Anders. in Journ. 
Linn. Soe. vii. 32; Lindau in Engl. & Prantl, Pflanzenfam. iv. 3 B. 313. 
C. cirsioides, Nees in DC, Prod. xi. 163. C. ovalifolia, Ficalho & Hier? 
in Trans. Linn. Soc. ser. 2, Bot. ii. 24, t. 6, fig. A. Ruellia nana an 
R. cirsioides, Nees in Linnea, xv. 354, 355. 
Mozamb. Dist. British Central Africa: Nyasaland; Manganja Hills, Kirk! 
Zambesi head-waters, Serpa Pinto, 
Also in South Africa. 
