Acanthopale. | XCVIII. ACANTHACEH (CLARKE). 65 
Spikes terminal, 2} by 1 in., dense, 6-16-flowered, nearly glabrous ; 
bracts }—3 in. long, elliptic. Sepals 5, equal, }~4 in. long, linear-oblong, 
minutely sparsely setose. Corolla 1 in. long or more. Stamens 4, sub- 
similar; anther-cells 2, parallel, long, rounded at the base; pollen 
strongly echinate. Ovary glabrous.—Dischistocalyx Buchholzii, Lindau 
in Engl. Jahrb. xx. 14, and in Engl. & Prantl, Pflanzenf. iv. 3B. 307, 
Lower Guinea. Gaboon: Buchholz! 
18.. WHITFIELDIA, Hook.; Benth. et Hook. f. Gen. 
Pl. ii. 1085. 
_ Calyx divided nearly to the base, longer than the bracteoles, petaloid 
in texture, softly hairy ; segments 5, subequal, narrow-oblong. Corolla 
large ; tube linear and very long, or shorter and dilated nearly from the 
base; lobes 5, subequal, contorted in bud, subequal. Stamens 4,subsimilar; 
anthers linear-oblong, muticous; pollen globose, nearly smooth (with 
minute tubercles) ; stopples 2. Ovary glabrous, 2 ovules in each cell ; 
style articulated close above the ovary and more or less widened at the 
» or continuous at base and ovary-top tapering into it; stigma capi- 
tate, obscurely 2-lobed. Capsule stalked, 2- or 4-seeded, glabrous ; seeds 
discoid, without hairs, nearly smooth.—Shrubs, 2-20 ft. high, nearly 
glabrous except the inflorescence. Leaves elliptic, acuminate at both 
ends, petioled, margins entire. Inflorescence terminal, simple or 
Tanched, racemose or spicate or more or lesspanicled ; flowers pedicelled 
(usually $-} in.) above the bract; bract large or small, ovate or linear, 
often caducous ; bracteoles large, ovate, membranous or subcorolloid. 
Species 9, endemic, 
The articulation at the base of the style is a remarkable character in the 
nthace@, and Baillon hastened to found his genus Stylarthropus thereon, without 
Les the two old species of W hitfieldia, which also have this articulation. 
nindan, following, leaves the two old Whitfieldias in that genus, and creates two 
ew species of Stylarthropus which do not possess the articulation. 
Linear part of corolla-tube 1-2 in. long. 
racteoles glabrous, 
Bract green persistent; corolla glandular 1. W. elongata, 
Bract caducons; corolla finely hairy 2. W. perglabra, ° 
Bracteoles viscid-hairy, 
Leaves closely dotted on the upper surface 3. W. longifolia.’ 
ves not or very obscurely dotted. —— 
Bract caducous ; panicle open . 4, W. subviridise 
. Bract large, green ; flowers spicatc . 5. W. tanganyikensis. 
ear part of corolla-tube 4} in. long. 
Bracts 4.2 in, long, linear. . 
Bracteoles pubescent . 6. W. lateritia, 
Bracteoles scarcely puberulous 7. W. Preussii. 
8. W. Brazzer. 
prrncteoles glabrous ; . 
cts 2-3 in } ao i lat 
2-3 - ones lanceolate ; innovations stellate- 9. W. Stuhlmanni, 
VOL. y, re F 
