Porana. | XC, CONVOLVULACEH (BAKER AND RENDLE). 85 
usually forked. Stigmas capitate. Fruit small, subglobose, 1-seeded, 
indehiscent or finally splitting. Seeds glabrous; cotyledons plicate. 
Stems wide-climbing. Leaves entire, usually petioled and cordate. 
Flowers purple, blue or white, generally very small, numerous, often 
(including the African species) panicled. 
Species 10, the others spread through Tropical Asia to North Australia. 
1. P. densiflora, Hallier f. in Engl. Jahrb. xviii. 93. Stems 
woody, climbing, glabrous. Leaves petioled, ovate, apex obtuse to 
acuminate, cuspidate, base entire to slightly cordate, glabrous, thin 
and membranous when dry, 2-3 in. long, 14-14 in. broad. Flowers 
very small, congested in clusters at the end of the main axis and 
branches of stalked axillary panicles, and forming a terminal panicle at 
the end of the branch. Younger portion of inflorescence and pedicels 
covered with pale brownish adpressed somewhat silky hairs, which occur 
also on the backs of the sepals and densely cover the unopened corolla. 
Sepals equal, barely 1 lin. long, coriaceous, orbicular. Corolla very 
small (4-} in. long), broad funnel-shaped; lobes lanceolate-oblong, 
emarginate, with broad membranous margins, strongly limited from the 
hairy midpetaline area. Styles 2; stigmas capitate; ovary globose, 4- 
ovuled. Fruit not seen. 
Nile Land. British East Africa: Rabai Hills, near Mombasa, Zaglor/ 
between Mombasa and Witu, Whyte ! 
Mozamb. Dist. German East Africa: Usambara; Duga, Holst, 3205! 
Buiti, Holst, 2379! Kiriamo, ex Dammer; and without precise locality, Fischer, 
284. 
14, JACQUEMONTIA, Choisy ; Benth. et Hook. f. Gen. Pl. ii. 874. 
Sepals subequal, or the outer broader, sometimes cordate at the base. 
Corolla funnel-shaped, 5-angled, obscurely 5-lobed. Stamens inserted 
low down in the corolla-tube ; filaments filiform or slightly dilated at 
the base; anthers oblong. Ovary 2-celled, 4-ovuled; style entire, 
filiform; stigmas 2, distinct, elliptic to orbicular, thick. Capsule 
globose, 2-celled, 4-valved. Seeds glabrous, scabridulous in the African 
species.—Herbs or shrubs, with twining or prostrate glabrous or hairy 
stems. Leaves usually cordate-ovate, entire. Flowers usually cymose 
or capitate, small, blue or white. 
Species 60 or more; the others American. 
Flowers densely crowded in heads. 
Corolla blue, twice as long as the calyx . x . 1. J. capitata. 
Corolla white, equal to the calyx. : “ . 2. J. thomensis. 
Flowers in few- to many-flowered cymes. oe. 
Leaves more or less oval . : : : “ oe Ose ovalifolia. 
Leaves cordate-ovate : . : : ‘ . 4, J. paniculata. 
1. J. capitata, G. Don, Gen. Syst. iv. 283. Annual. Stems 
slender, twining or trailing, finely pilose. Leaves ovate, generally acute, 
2-3 lin. long, base shallowly cordate or flat to shortly abruptly acute 
