ACANTHACEJE (S. Moore) 89 
magenta. Corolla 23 mm. long;.tube barely 10 mm. long, 1 mm. or 
slightly more wide in its lower part, and only 2 mm. at the throat; 
lower lip 13 mm. long, 6:5 mm. at the widest part, its lobes deltoid- 
rotundate, and 1:25 mm. long, the mid-lobe 2:25 mm. broad. 
Filaments stout, 10 mm. in length. Anther-cells 2 mm. long. Ovary 
1:5 mm. Style 17 mm. long. 
Quite unlike any African species known to me. In habit it 
resembles H. phyllostachys Bak. from Madagascar, but to mention 
one point only, the involucres of the two are different. - 
Rungia dimorpha S. Moore sp. nov. Herba caule erecto 
distanter folioso bifariatim pubescente mox glabro ; foliis ovatis 
(summis lanceolato-ovatis) apicem versus acuminatis apice ipso 
obtusis vel emarginatis basi in petiolum brevem angustatis 
papyraceis utrinsecus (nervis puberulis nisi pubescentibus exclusis) 
glabris ; spicis elongatis breviter pedunculatis terminalibus axilla- 
ribusve solitariis vel 2-3-nis quam folia brevioribus ; bracteis arcte 
imbricatis dimorphis sc. sterilibus ovatis sursum gradatim angus- 
tatis apice obtusis vel obtuse acutis basi breviter amplexicaulibus 
quam fertiles obovatae obtusissimae subito brevissime cuspidulatae 
basi leviter cordatae longioribus bracteis omnibus papyraceis laete 
viridibus margine angustissime decoloribus ut spicarum axis 
glandulo-pubescentibus ; bracteolis oblongo-lanceolatis acutis quam 
bractea stipans paullulum brevioribus ; calycis segmentis 5 angus- 
tissime lineari-lanceolatis acutis bracteolas aequantibus glanduloso- 
pubescentibus ; corollae tubo calycem breviter excedente superne 
gradatim ampliato labio antico suborbieulari breviter 3-lobo lobis 
lateralibus quam intermedius latioribus labio postico deltoideo- 
triangulari apice integro; antherarum loc. sup. basi appendice 
lata obtusissima onusto loc. inf. basi incurvo-calcarato ; capsula 
oblonga puberula 4-sperma. 
Oban; n. 1528. 
Branches somewhat wiry, swollen at the nodes, drying blackish. 
Leaves usually about 12 x 5:5 cm., a few 7-10 x 2:5-4 cm., deep 
green when dry and palely shining ; petioles + 1 cm. long, pubescent 
above. Spikes (ineluding the 1 em. long peduncle) generally 8-12 cm. 
long, 1°5-2 em. broad. Sterile bracts mostly 11-15 x 6-8 mm.; 
fertile bracts about 10 x 6 mm. Bracteoles 6 x 1°75 mm., glandular 
pubescent. Segments of calyx somewhat unequal, 6-7 x ‘5 mm. 
Tube of nearly glabrous pale greenish corolla 9 mm. long, 2 mm. 
wide below, at the throat 4 mm.; lower lip 5 x 6:5 mm., the lobes 
scarcely 1 mm. long; upper lip purple-dotted, 4:5 mm. long and 
4 mm. wide at the base. Filaments exserted to a length of 2:5 mm. ; 
upper cell of anther 1:5 mm. long, lower cell 1°75 mm. Pollen 
ellipsoidal with a narrow and a broader finely tuberculate band 
between each of the six pores. Ovary 1'5 mm. long; style 9 mm. 
Capsule 7 mm. long, flattened base as long as the fertile part. Seeds 
suborbieular with brown, finely tubercled testa, "5 mm. in diameter. 
Allied to R. obcordata Lindau, which has uniform bracts and 
different flowers. 
