722 LXXXVI, BORAGINES. [Cynoglossum 
with 5 gibbosities, which do not close the wide throat ; stamens 
included ; anthers yellow; ovary 4-lobed; style simple, included, 
seated at the base on a kind of quadrangular fleshly-inflated gynophore; 
stigma subcapitate ; nutlets 4, distinct, depressed, densely echinate on 
the dorsal angle, adnate to the base of the style. At the lower thickets 
by the Ambaca road, fl. from Nov. to Jan., rather rare, Dec. 1855 ; also 
in dense forests at the river Luinha ; Sange, 21 Nov. 1855. No. 5449. 
Huiiia.—An erect, annual or biennial herb, 2 to 33 ft. high, with 
the habit of the genus ; stem thyrsoidly branched, as well as the leaves 
softly pilose ; racemes mostly forked in terminal branchlets ; rachis 
silky-pilose ; calyx obtusely 5-cleft ; corolla tubular-funnel-shaped, 
5-cleft ; the lobes of the limb white, obtuse; the throat nearly closed, 
as well as the tube violet-purple ; stamens inserted a little below the 
throat, very short ; anthers yellowish, subconnate ; nutlets 4, globose, 
hispidulous ; style firm, short, rather thick ; stigma broadly truncate. 
In thickets and hot pastures, on hills near Lopollo, not abundant ; ~ 
fi. 10 Jan. 1860. No. 5300. An annual herb, 2 to 3 ft. high, erect, 
branched ; flowers few, violet-coloured. In hot parts of forests at an 
elevation of 5000 ft. ; near the Monino river, plentiful ; fr. Feb. 1860. 
Cou. Carp. 75. 
7. ECHIUM Tournef., L.; Benth. & Hook. f. Gen. Pl. ii. p. 863. 
1. E.stenosiphon Webb in Hook. Niger FI. p. 155. t. 15 (1849) ; 
J. A. Schmidt, Fl. Cap. Verd. Ins. p. 226 (1852). 
Care DE VERDE IsLANnps.—In rocky maritime places in the island 
of St. Vincent ; fl. Sept. 1853. No. 5469. 
LXXXVII. CONVOLVULACE. 
The Convolvulacee include plants which attract the attention 
and admiration of the traveller on his first arrival on African 
soil. Jpomea biloba Forsk. abounds everywhere along the sea- 
shore, and in the richest luxuriance clothes with verdure the hot 
sandhills ; it pushes along over the sands its purple-red stems, 
which are not uncommonly 10 to 15 fathoms long, and which in 
a short space of time are so luxuriantly clothed with leaves and 
clusters of flowers that often a single plant produces a bright 
green oasis. J. stolonifera Gmw., with its small whitish bell-shaped 
flowers, occurs in like situations and frequently much closer to 
the sea, so that it is often flooded with the tidal waters. An 
Evolvulus, a Merremia, and a Seddera are found also in the 
littoral region, and £. alsinoides L. is one of the most abundant 
plants on the dry hills and sandy pastures of this region. Towards 
the interior Convolvulacee occur more and more frequently in 
the mountainous region, sometimes as weeds, sometimes forming 
a pretty green edging to lakes and swamps, or adorning with 
their. beautiful variously coloured flowers the bushes and trees 
which overhang the rivers and streams, while in the highland 
region they lose their climbing habit, and, as is the case with 
many vines, they become erect shrubs; an example of this latter 
condition is seen in J. prismatosyphon Welw., which is plentiful 
in Pungo Andongo, and forms one of the chief ornaments of the 
plateaux of that district. Lepistemon occurs in Angola only in 
