Bisperma.] xcviii. acaxthace^ (olarke). 81 



3. D. parviflorum, C. B. Clarke. Branches 3-4 ft. long, stout, 

 patently hairy. Leaves 3|- by 1| in., narrowed at both ends, sparsely 

 hairy, coarsely crenate ; petiole 0-|- in. long. Flower-clusters axillary, 

 very dense; bract small, shorter than the calyx. Calyx scarcely i in. 

 Jong, 2 anticous segments connate | their length, 3 others connate 

 scarcely \ 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 i in. long, 

 stalked, ellipsoid, flattened, 2-seeded, shining brown. — Ilygrophila parvi- 

 flora, Lindau in Engl. Jahrb. xx. 7, and in Engl. Pfl. Ost-Afr. C. 3GG, 



XVEozamb. I>ist. 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 Ilygrophila parvifiora (calyx ~ in. long) applies mainly lo the 

 present species. The other plant mixed under Buchanan 556 is a Dyschoriste, with 

 calyx 1^ in. long, near or perhaps D. trichocalyx. 



4. D. quadrangulare, C. B. Clarke. Large, subscandent ; branches 

 sharply quadrangular. Leaves up to 8 by 'd\ 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 8 in. ; bract \ in. long, oblong ; bracteoles 

 similar, rather smaller. Calyx J in. long, divided J— J the way down, 

 more or less viscid-hairy ; teeth narrow-lanceolate. Corolla | in. long 

 (linear-cylindric portion J 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 D. kilimandschaHcum, but a little larger, \ in. 

 long. — Nomaphila quadrangularis, Klotzsch in Peters, Reise Mozamb. 

 197. Hygrophila quadrangularis, Lindau in Engl. Pfl. Ost-Afr. C. 3(]7 

 partly. 



IVZozamb. I>lst> German East Africa : Bibisande, Stuhlmann, 409 ! Usukuma ; 

 Usiha, Fischer, 493 ! Portuguese East Africa : Rios de Sena, Peters, 8 ! British 

 Central Africa : Nyasaland ; Katunga, on the River Shire, Scott ! 



This fine plant has all the appearance of one of the large rambling Indian 

 Strohilanthes : 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). 



5. D. dentatiun, C. B. Clarke. Leaves up to 3 J by 1-J in., dis- 

 tinctly regularly crenate-toothed ; otherwise nearly as D. quadr angular e. 



nxozamb. Bist. Portuguese East Africa : Lower Zambesi ; Shiramba, Kirk I 

 British Central Africa : Nyasaland ; Monkey Bay, Lake Nyasa, 1600 ft., Whyte I 



The inflorescence is more viscid-hairy than that of B. quadrangulare ; the leaves 

 have stronger nerves raised beneath ; and the toothing of the margin consists of forward- 

 pointed white teeth each ending in a minute point. In J>. quadrangulare, the margins 

 of the leaves are very entire and obscurely wavy. The calyx, corolla, stamens, and pistil 

 are like those of D. quadrangulare. 



6. D. angolense, C. B. Clarke. Leaves up to 1^ by J in. (mostly 

 smaller), entire, narrowly obovate-oblong, sessile, densely minutely 



