Dyschoriste.] xcviii. acanthace^ (clarke). 75 



within. Corolla J in. long, dark purple when dry. Stamens 4, sub- 

 similar; anther-cells equal, very obtuse at both ends; pollen small, 

 ellipsoid, ribbed. Style with one linear stigmatic branch ; cells of 

 ovary 2-ovulate. 



MCozaxnb. I>lst. British Central Africa: Niomkolo Island, in Lake Tan- 

 ganyika, Carson ! 



The anthers in this species are altogether like those of a typical Ruellia. 



10. D. trichocalyx, Lindau in Engl. Pfl. Ost-Afr. C. 367. 

 Branches 18 in. long, hairy. Lower and middle leaves 2 by J in. ; 

 elliptic, hairy on both surfaces, cystoliths obscure ; petiole J in. long. 

 Flowers often 8-15 in densely congested axillary cymes; bracteoles 

 linear, scarcely J the length of the calyx. Calyx | in. long, divided f way 

 down ; tube sparsely hairy without, with long white hairs within ; teeth 

 long, subulate, with many simple hairs, few glands. Corolla |-J in. 

 long, purple-red ; narrow-cylindric base of tube short ; limb somewhat 

 2-lipped. Stamens 4, subsimilar ; anthers oblong, distinctly tailed ; 

 pollen longitudinally many ribbed. Style hairy, one stigmatic branch 

 linear, the other suppressed; ovary 4-ovulate. Capsule J- in. long, 

 narrow-cylindric, 4-seeded; seeds covered with hygroscopic hairs. — 

 Cahphanes trichocalyx, Oliv. in Trans. Linn. Soc. xxix. 120, t. 12G. 

 Hygrophilay sp. 1, T. Thoms. in Speke, Journ. Append. G43. 



Mozamb. Blst. German East Africa : Karagwe, Spelce &■ Orant, 404 ! Scott- 

 Elliot, 7491 ! 8124 ! 



11. D. verticillaris, C. B. Clarke, Branches glabrous except at 

 the tips. Lower and middle leaves glabrous, cystoliths numerous and 

 conspicuous above, below still larger. Calyx very hairy (almost woolly) 

 without, and with numerous glandular hairs ; otherwise as D. trichocalyx. 

 — Calophanes verticillaris, T. Anders, ex Oliv. in Trans. Linn. Soc. 

 xxix. 126. Nomch'pliila glandulosa, Klotzsch in Peters, Reise Mossamb. 

 198. Hygrophila glandulosa, Lindau in Engl. Pfl. Ost-Afr. C. 367. 



Mozamb. Bist. German East Africa : Higher Plateau, north of Lake Nyasa, 

 Thomson ! Portuguese East Africa : Beira, Braga, 147 ! Rios de Sena, Peters ! 

 British Central Africa: Nyasaland ; Tanganyika Plateau at Fort Hill, 3500-4000 ft., 

 Whyte I Nyika Mountains, 4000-6000 ft., Whyle ! hetween Songwe and Karonga, 

 1700-2000 ft., Whyte 32 ! between Kondowe and Karonga, 2000-6000 ft., Whyte, 

 379 ! Masuku Plateau, 6500-7000 ft., Whyte 1 Manganja Hills, Meller ! Blantyre, 

 Suchanan, 74! Zomba and vicinity, 2500-3500 ft. Whyte I Mount Chiradzulu, 

 4000 ft., Whyte ! and without precise locality, Buchanan, 16 ! 



This species is hardly separable from D. trichocalyx ; the subulate tips to the 

 calyx-teeth are shorter. 



12. D. pedicellata^ C.B. Clarke. Pubescent. Leaves IJ by | in., 

 narrow elliptic, pubescent on both surfaces ; cystoliths obscure. 

 Cymes axillary, lax, branched ; pedicels U— J in. long ; bracteoles J in. 

 long, linear. Calyx exceeding J in. in length, divided rather more 

 than ^ way down, pubescent without, white haiiy within ; cystoliths 

 obscure. Corolla 1 in. long, purplish-red when dry ; linear-cylindric 

 portion of the tube \ in. long. Stamens, style, ovules, pollen, as of 

 genus. Capsule \ in. long, 4-seeded. 



