722 Lxxxvi. BORAGiNEyE. \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 Xov. to Jan., rather rare, Dec. 1855 ; also 

 in dense forests at the river Luinha : Sange, 21 Nov. 1855. No. 5449. 

 HuiLLA. — An erect, annual or biennial herb, 2 to ?>h ft. high, with 

 the habit of the genus ; stem thyr.soidly 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 LopoUo, not abundant ; 

 fl. 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. 

 Coll. Carp. 75. 



7. ECHIUM Tournef., L. ; Benth. & Hook. f. Gen. PL ii. p. 863. 



1. E. stenosiphon Webb in Hook. Niger Fl. p. 155. t. 15 (1849) ; 

 J. A. Schmidt, Fl. Cap. Yerd. Ins. p. 226 (1852). 



Cape de VePvDE Islands. — In rocky maritime places in the island 

 of St. Vincent ; fl. Sept. 1853. No. 5469. 



LXXXVII. CONVOLVULACE^. 



The Convolvulaceae include plants wbich attract the attention 

 and admiration of the traveller on his first arrival on African 

 soil. Ipomoia biloha Forsk. abounds everywhere along the sea- 

 shore, and in the richest li;xuriance 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 luxuriantl)'' clothed with leaves and 

 clusters of flowers that often a single plant pi'oduces a bright 

 green oasis. /. stolonifera Gm., 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 Mei^emia, and a Seddera are found also in the 

 littoral region, and E. alsinoides L. is one of the most abundant 

 plants on the dry hills and sandy pastures of this region. Towards 

 the interior Convolvulacese occur more and more frequently in 

 the mountainous region, sometimes as weeds, sometimes forming 

 a pretty green edging to lakes and swamps, or adoi-ning 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}^'ismatosyphon 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 



