304 



LIST OF PLANTS 



Name. 

 Varronia abyssinica DC. 



Heliotropium sp. 

 Arnebia liispidissima DC. 



Datura Metel L. 



BORAGINACE^. 

 Habitat. 

 Tuburi marshes 



Garua to Golombe . 

 Garua to Golombe . 



SOLANACE^. 

 Lere to Ham . 



SCROPHULARINE^. 

 Rhamphicarpa fistulosa Bth. . Lere to Ham . 



Buchnera sp. 



. Lere to Ham . 



Distribution. 



Nile-land and Arabia ; Mozam- 

 bique ; Angola. 



North Nigeria ; Nile-land ; Egypt, 

 the Orient, to northern India. 



Everywhere in the tropics ; prob- 

 ably originating from tropical 

 South America. 



Of wide distribution in tropical 

 and south Africa ; occurs also 

 in Madagascar. 



BIGNONIACE^. 



Stereospermum Kunthianum ( Tuburi marshes 

 Cham, ( Lake Chad district 



) Tropical Africa, widely distrib- 

 ) uted. 



PEDALINE^. 



Sesamum 

 Thonn. 



alatum Schum. & Garua to Golombe 



Nelsonia campestris R. Br. 

 Hygrophila spinosa T. And. 

 * Barleria bornuensis, sp. nov. . 

 Justicia tlava Vahl. . 

 + Siphonoglossa Macleodise, sp, 



nov. 

 Monechma hispidum Hochst. , 



ACANTHACE^. 



Garua to Golombe . 

 Tuburi marshes, Lere to Ham 

 Lake Chad district , 

 Lake Chad district . 

 R. Benue, N. Nigeria 



Ham to Fort Lamy . 



Upper Guinea, Nile-land, Mozam- 

 bique. 



Tropics of both hemispheres. 

 Tropical Africa and India. 



Tropical Africa. 



Senegambia to Nyassaland. 



* Barleria (§ Acanthoidca) bornuensis, S. Moore, sp. nov. Frutex vel fruticulus ramosus ; ramis crebro foliosis 

 aliquantuluni fiexuosis ad nodes leviter tumidis juventute pubescentibus dein glabris ; foliis parvis subsessilibus 

 obloiigis vel oblongo-ovatis breviter spmoso-acuminatis integris rare sparsissime spinuloso-dentieiilatis coriaceis 

 pagina utravis pilis strigillosis appressis onustis ; sjjinis inter-petiolaribus binis patentibus vel ascendenti- 

 patentibus simplicibus vel juxta basin 1-3-denticulatis ventre planis dorso convexls apice pungentibus sordide 

 albis glabris ; bracteis spinis interpetiolaribus similibus ; floribus in axillis superioribus solitariis subsessilibus ; 

 calycis parvuli puberuli segmento antico ovato-oblongo apice bidentato margins integro segniento postico antico 

 subsiniili apice obtuse segmentis lateralibus oblongis obtusis quam reliqua paullo longioribus omnibus her- 

 baceis ; corolke violacese tubo calycem excedente triente siiperiori ampliato lobis omnibus inter se subsimilibus 

 late rotundato-obovatis lobo antico altins solute; stamiinbus 2 subinclusis ; staminodiis 2 antheris parvis 

 gaudientibus tertium anthera orbum baud vel paullulum supecantibus ; ovario ovoideo glabro ; ovulis queve in 

 loculo 2 ; capsula anguste oveideo-oblonga basi apiceqne angustata. 



Hab. Lake Chad district; P. A. Talbot, 1009. 



Leaves 8-13x4-7 nun., the terminal spinelet about 1'5 mm. long, drying a darkish grey-green; petioles at 

 most not much exceeding 1 ram. in length. Interpetiolar spines +1 cm. long, not very strong, but sharply 

 pointed. Outer segments of calyx 6 mm. long, 3-3-2 mm. broad; inner segments 7 mm. long; all the lobea 

 ciliolate at the margin. Corolla 34 mm. long ; tube in front 15 mm., behind 22 mm. long, 3'5 mm. wide below, 

 increasing to double that width at the throat; lobes 12 mm. long (front one IS mm.) and 8-10 mm. broad. 

 Staminal filaments 15 mm. long; anthers ovate-oblong 4 '5 mm. long; staminodes 5-6 mm. long. Ovary 2'5 mm, 

 long ; style glabrous, except for the pilose base, 25 mm. long. Capsule 12 mm. long, 6 mm. wide at the widest 

 part, apparently 4-seedpd. Seeds not seen. 



Much like B. triacantha Hochst. in habit, but different from it in several respects, notably in the calyx. 

 For the lateral segments of the calyx to exceed the outer segments, as they do here, is very unusual in the 

 genus. 



t Siphonoglossa Macleodim, S. Moore, sp. nov. Cavle ascendente geniculate sat distanter folioso pilose vel 

 sparsim piloso-puberHle ; foliis brevipetiolatis lineari-rarius oblongo-lauceolatis obtusis membranaceis pra'sertim 

 juxta basin piloso-puberulis mox fere glabris margine ciliolatis; floribiis in axillis superioribus 2-3 sessilibus 

 subsessilibusve ; bractea calyci circa sequilonga anguste lineari-lanceolata obtuse acuta margine pilis piloso- 

 hispidulis ciliata ; bracteolis parvulis anguste lineari-oblongis glabris; calycis segmentis 5 inter se insequalibiis 

 lineari-lanceelatis longe acuminatis margine ciliolatis ; corolke tubo calycem manifests excedente anguste 

 cylindrico faucibus leviter amplificato dimidio superiori puberulo ceterum glabro labio antico elongato 



