Disperma.] XCVIII. ACANTHACEH (CLARKE). 81 
3. D. parviflorum, ('. B. Clarke. Branches 3-4 ft. long, stout, 
patently hairy. Leaves 34 by 1} in., narrowed at both ends, sparsely 
hairy, coarsely crenate ; petiole 0-1 in. long. Flower-clusters axillary, 
very dense; bract small, shorter than the calyx. Calyx scarcely + in. 
long, 2 anticous segments connate ? their length, 3 others connate 
scarcely 4 their length. Corolla-tube ! in. long, mouth small; anthers 
muticous, pollen of Disperma. Ovary with 2 ovules in each cell; style 
nearly glabrous, branches linear, unequal. Capsule scarcely } in. long, 
stalked, ellipsoid, flattened, 2-seeded, shining brown.—Hygrophila parvi- 
fora, Lindau in Engl. Jahrb. xx. 7, and in Engl. Pf. Ost-Afr. C. 366. 
Mozamb. Dist. British Central Africa: Nyasaland, Buchanan, 556 partly! 
Buchanan 556 is a mixture, and the sheets have been issued mixed! The descrip- 
tion of Lindau of his Hygrophila parviflora (calyx 4 in. long) applies mainly to the 
Present species. The other plant mixed under Buchanan 556 is a Dyschoriste, with 
calyx 3 in, long, near or perhaps D. trichocalyz. 
4. D. quadrangulare, (. B. Clarke. Large, subscandent ; branches 
sharply quadrangular. Leaves up to 8 by 3} in., spathulate-elliptic, 
hardly petioled, thin in texture, very sparsely hairy, cystoliths obscure ; 
margin entire, obscurely waved. Inflorescence in viscid-hairy axillary 
panicles 3-6 in. long, but (by the falling of the floral leaves) apparently 
a terminal panicle 14 by & in.; bract } in. long, oblong; bracteoles 
Similar, rather smaller. Calyx 4 in. long, divided 4—} the way down, 
More or less viscid-hairy ; teeth narrow-lanceolate. Corolla % in. long 
linear-cylindric portion } in. long), purple with brown transverse 
Marks and strong deflexed simple hairs in the throat. Stamens, 
anthers, pollen, pistil, stigmas, and ovules as of D. kilimandscharicum. 
Capsule (and seeds) as of ). kilimandscharicum, but a little larger, } in. 
ong.—Nomaphila quadrangularis, Klotzsch in Peters, Reise Mozamb. 
mit Hygrophila quadrangularis, Lindau in Engl. Pfl. Ost-Afr. C. 367 
y. 
tie 
,Mozamb. Dist. (German East Africa: Bibisande, Stuhlmann, 409! Usukuma ; 
Usha, Fischer, 493 ! Portuguese East Africa: Rios de Sena, Peters, 8! British 
Central Africa : N yasaland; Katunga, on the River Sbire, Scott! ; 
This fine plant has all the appearance of one of the large rambling Indian 
Strobilanthes : except by the number of ovules it might be placed in that genus. 
Klotzsch has misled everybody by printing that the cells of the ovary are vieleiig 
(many-ovuled) instead of viereiig (4~-ovuled). 
2 D dentatum, (. 2. Clarke. Leaves up to 3} by 1} in., dis- 
tinetly regularly crenate-toothed ; otherwise nearly as D. quadrangulare. 
,Mozamb. Dist. Portunese East Africa: Lower Zambesi; Shiramba, Kirk / 
British Central Africa : N yasaland : Monkey Bay, Lake Nyasa, 1600 ft., Whyte ! 
The inflorescence is more viscid-hairy than that of D. quadrangulare ; the leaves 
ave stronger nerves raised beneath ; and the toothing of the margin consists of forward. 
ri white teeth each ending in a minute point. In D, quadrangulare, the ree 
are lik leaves are very entire and obscurely wavy. The calyx, corolla, stamens, and p 
ike those of D. quadrangulare. 
6. D. an wel to 14 by } in. (mostly 
- angolense, C. B. Clarke. ‘Leaves up to 4 by . 
on entire, narrowly obovate-oblong, sessile, densely minutely 
v. 
