564 LXXXVII. GENTIANEZ (BAKER AND BROWN). [Hnicostema.. 
has led to much confusion in the nomenclature; they are all perfectly distinct... 
The name £. verticillatum should be restricted to the American plant (Gentiana 
verticillata, Linn. Syst. ed. 10, ii. 952). 
2. E. latiloba, V. Z. Br. Plant 1-2 ft. high, glabrous. Stems 
simple or branching towards the base, slightly 4-angled. Leaves 
13-2} in. long, 14-8 lin. broad, linear to elongate-oblong, acute or 
obtuse, spreading. Clusters many-flowered. Flowers sessile, d-merous. 
Bracteoles 1-1} lin. long, 3-1 lin. broad, broadly obovate or rhomboid- 
obovate, acute or obtuse and apiculate, with broad submembranous 
margins. Calyx 14-2 lin. long, obconic-campanulate, 5-lobed to half. 
way down; lobes broadly imbricating, 3-1 lin. broad, very broadly 
ovate or suborbicular, obtuse, minutely apiculate, with broad sub- 
membranous margins. Corolla-tube 2-24 lin. long, cylindric ; lobes. 
2-1 lin. long, }—2 lin. broad, oblong, obtuse or subacute, with inrolled 
margins in the dried state. Stamens inserted about 3 the way up the 
coroila-tube, included; filaments with a membranous two-tiered or 
flounced hood at their base; anthers } lin. long, acute. Style 3-3} lin. 
long, filiform, not thickened upwards; stigma capitate. Capsule 2 lin.. 
long, 1-1} lin. broad, ellipsoid, rather obtuse.—Z. verticillatum, Gilg in. 
Engl. & Prantl, Pflanzenfam. iv. ii. 68, fig. 31, B-E (fig. 31, A, from its 
small size, probably belongs to Z. littorale, B1.). 
Nile Land. British East Africa: Mombasa, Wakefield ! 
Mozamb. Dist. German East Africa: Rovuma Bay, Kirk! Usambara ;. 
Doda, Holst, 2930! and without precise locality, Hannington ! 
10. PYCNOSPH RA, Gilg in Kunene-Sambesi Exped. 333. 
Calyx 3-partite ; sepals unequal, the dorsal minute, the two lateral’ 
narrow, complicate, keeled. Corolla 3-lobed; tube cylindric; lobes. 
spreading. Stamens 3, inserted at the sinuses of the corolla; filaments 
filiform, dilated into a small hood at their base; anthers versatile, 
oblong. Ovary 1-celled, with 2 parietal or slightly intruded placentas . 
style filiform ; stigmas 2, long, linear.—Erect herbs. Leaves opposite. 
Flowers in dense bracteate heads, corymbosely arranged at the ends of 
the stem and branches. 
Species 2, endemic. 
Gilg describes the cuter sepal as very large and bract-like, embracing the base 
of the corolla. He has evidently mistaken the large bract embracing each flower for 
the dorsal sepal, which latter, being very small, he appears to haveoverlooked. The 
ovary is also described as 2-celled ; I find it as described above.—N. E. Br. 
Inflorescence a corymb . : : : Z . IL. P. trimera. 
Inflorescence an elongated panicle . i : . 2. P. Buchanani. 
1. P. trimera, Gilg in Kunene-Sambesi Exped. 333. Annual,. 
20-28 in. high, glabrous. Stem erect, corymbosely branching at the 
top only. Basal leaves crowded, 1-1} in. long, 2-3 lin. broad, oblong, 
or oblong-lanceolate, obtuse or subacute, narrowed to the base; stem- 
