82 XCVIII. ACANTHACEE (CLARKE). [ Disperma. 
softly hairy. Inflorescence of numerous axillary approximate short few- 
flowered cymes, running into apparently panicled spikes, with soft 
hairs and many-celled gland-tipped hairs, almost viscid. Calyx divided 
about 4 the way down, somewhat 2-lipped. Corolla 3 in. long. Stamens 
4, subsimilar ; anthers narrow-oblong, obtuse at the base, pollen short- 
ellipsoid, 8-12-ribbed. Style hairy; branches 2, oblong, slightly unequal, 
ovary glabrous. Capsule } in. long, of the genus. 
Lower Guinea. Angola: Huilla; Humpata, Johnston! Cunene River, 
Johnston ! 
7. D. densiflorum, C. B. Clarke. Pubescent; branches stout, 
terete, with raised lines. Leaves 2 by 14 in., ovate, crenate; petiole up 
to}in. long. Cymes axillary, compound, 10—30-flowered, near together ; 
bracteoles 4 in. long. Calyx } in. long, divided 4 the way down; teeth 
lanceolate, minutely pubescent. Corolla ? in. long; lobes subequal, 
short. Stamens 4, subequal; anthers not tailed; pollen longitudinally 
ribbed. Style-branches 2, linear-oblong, slightly unequal. Capsule } in. 
long, 2-seeded ; seeds covered with hygroscopic hairs. 
East Tropical Africa. Without locality, Scott-Elliot ! 
23. PHAYLOPSIS, Willd. ; Benth. et Hook. f. Gen. Pl. ii. 1081. 
Calyx 5-fid nearly to the base; 2 anticous segments oblong oF 
linear, posticous segment ovate or elliptic, 2 inner segments shorter, 
linear. Corolla small ; tube } in. long or less, inflated upwards (except 
in P. lankesterioides and P. glandulosa); lobes 5, contorted, nearly 
equal, but forming 2 lips. Stamens 4; anther-cells at the base 
minutely apiculate or muticous; pollen short-ellipsoid, longitudinally 
12-ribbed, with 3 stopples. Style thinly hairy; one stigmatic arm 
linear-oblong, the other very short ; ovary with 2 ovules in each cell, 
glandular at the top, often also hairy or glandular nearly to the base. 
Capsule elliptic, compressed, solid at the base, 4-seeded, margins very 
stout, solid, faces becoming scarious and breaking up ; capsule dehiscing 
with elasticity, the placente (carrying the seeds) separate and spring 
up from the bottom; margins of seeds with numerous hygroscopi¢ 
hairs.—Small, shrubby. Leaves often very oblique, those in one 
opposite pair unequal, elliptic, entire or crenate. Inflorescence ™ 
cylindric or ovoid spikes, the broad floral leaves enclosing a contrac 
cyme of usually 3 flowers; bract and bracteoles 0. 
Species 15, in Africa, Mascarene Islands, India, 
Petalidum ditfers from Phaylopsis \ittle but by having 2 large bracteoles to each 
flower. 
Willdenow constituted the genus Phaylopsis in 1800. Bentham (in Benth. 
et Hook. f. Gen. Pl. ii. 1081), states that the genus is equal to Micranthus, Wendl. 
published in 1798, but as the name Micranthus, Ecklon, had been for fifty years 
used for a genus of Jridez, Bentham exercised his discretion by continuing the 
name Phaylopsis, though Micranthus had two years priority. In 1891, O. Kuntze 
revived Micranthus, Wendl., after it had slept for ninety-three years, 
