Macrorungia. | XCVIII. ACANTHACE® (CLARKE). 255 
next Duvernoia, i,e., Adhatoda, but I rather guess from the inflorescence that the fruit 
(which I have not seen) will prove to be that of Macrorungia. 
Leaves 6 in. long, when young densely pubescent 
beneath . . . . . . . 1. M., pubinervia. 
Leaves up to 12 in. long, glabrous. . . . 2. M. macrophylla. 
Leaves less than 2 in. long, nearly glabrate . . 3. M. formosissima, 
1. M. pubinervia, ('. B. Clarke. Leaves 6 by 2} in., narrowed 
at both ends, when young densely grey pubescent on the nerves beneath, 
finally glabrate ; petiole 1 in. long. Spikes all axillary, short-peduncled, 
3—8-flowered, $—1} in. long, lax, hardly strobilate ; bract }—} in. long, 
ovate or obovate. Calyx } in. long, tubular for } its length, minutely 
pubescent, pinkish. Corolla 14 in. long, red-purple. _Pistil glabrous ; 
stigma minutely 2-fid. Capsule 4—} in. long.—Rungia (?) pubinervia, 
T. Anders. in Journ. Linn. Soc. vii. 46. AHimantochilus marginatus, 
Lindau in Engl. Jahrb. xx. 60, and in Engl. & Prantl, Pflanzentfam. iv. 
3B. 346. H. pubinervius, Lindau in Engl. Pfl. Ost-Afr. C. 373. 
Mozamb. Dist. German East Africa: Usambara; Kwa Mshuza, Holst, 9063 ! 
British Central Afriea: Nyasaland; Mount Chiradzulu, Kirk / 4000 ft., Whyte ! 
2. M. macrophylla, (. 2. Clarke. Leaves up to 12 by 5 in, 
narrowed at both ends, glabrous; petiole I—-2 in. long. Inflorescences 
axillary, short, dense, peduncled; bracts 2 by } in., ovate, acuminate, 
imbricate. Calyx } in. long, tubular at the base; teeth } in. long, 
lanceolate, finely hairy. Corolla-tube 3 in. long; upper lip 1} in. long. 
Stamens and pistil of the genus.—/imantochilus macrophyllus, Lindau 
in Engl. Jahrb. xx. 60, in Engl. & Prantl, Pflanzenfam. iv. 3 B. 346, 
and in Engl. Pfl. Ost-Afr. C. 372. 
South Central. Congo Free State: in Forest west of the Isango or Semliki 
River, Stuhlman, 2938! 
3. M. (?) formosissima, (. 7. Clarke. Leaves 1} by { in., 
elliptic, nearly glabrate; petiole 4 in. long. Spikes on short axillary 
branches, 14-2) by } in., loosely strobilate; bract } by { in., elliptic, 
acute, strongly 5-ribbed, and puberulous ; bracteoles } in. long, linear. 
Calyx subequally and deeply 5-fid; segments 4 in. long, narrow-lanceo- 
late, pubescent. Corolla nearly 2 in. long, narrow, red; anticous lip 
more than 1 in. long, linear. Stamens 2; filaments long, glabrous; 
one anther-cell much below the other, shortly tailed; pollen ellipsoid, 
smooth, with 2 stopples, completely banded. Pistil glabrous, except 
for a few hairs near the base of the style; style shortly and subequally 
2-fid; ovules 2 in each cell.— Adhatoda formosissima, Klotzsch in Peters, 
Reise Mossamb. Bot. 215. Symplectochilus formosissimus, Lindau in 
Engl. Jahrb. xx. 45, and in Engl. & Prantl, Pflanzenfam. iv. 3 B. 339, 
fig. 107, F, and 135, H, and in Engl. Pfl. Ost-Afr. C. 372. 
Mozamb. Dist. Portuguese East Africa: Lower Zambesi: Sena, Pefers / 
Tete, Kirk ! British Central Africa: Nyasaland, Buchanan, 1407! 
