228 cxviii. THYMELiEACEiE (pearson). [Lasiosiphon. 



Articulation below middle of calyx-tube. 



Ovarv glabrous below the middle . . .11. L. lampranthus. 



Ovary villous or pubescent to the base. 



Stem and leaves pubescent . . . 8. i. Kraussii. 



Stem and leaves villous. 



Leaves acute 12. L. hcepfneriamis. 



Leaves obtuse 13. i. Kerstingii. 



1. L. Vatkei, Kiujl. in Eoujl. Ja'rh. xvii. 107. A shrub about 

 7 ft. liigli. Young branches pubescent, later glabnnis. Leaves oblong 

 or oblong-lanceolate, obtuse or rounded at tlie apex, narrowed tow ards 

 the base, sliortly petioled, adpressed pubescent, lJ-2 in. long, \-\ in. 

 broad. Heads few-flowered, axillary ; peduncle narrowly funnel-shaped, 

 thick, glabrous, except at the apex, \-\ in. long; involucral bracts 

 about 4, broadly elliptic, obtuse, finely pubescent, almost as long as the 

 flowers, caducous. Flowers 5-merous, shortly pedicelled ; pedicel about 

 1 lin. long, pubescent. Calyx-tube articulated, densely villous on the 

 outside with erect silky yellow-white hairs, \-\ in. long ; lobes spreading 

 during flowering, oblong-elliptic, rounded at the apex, pubescent on the 

 margins, villous on the back, about J as long as the tube. Petals 0. 

 Ovary pubescent and bearing a tuft of long erect hairs at the summit; 

 hypogynous disc minute. — L. Iliklehrandtii, Vatke ex Engl. Hochge- 

 birgsti. Trop. Afr. P)10 (not of Scott-Elliot in Journ. Linn. Soc. xxix. 47). 

 Artltrosolen latifolhis, Oliv. in Trans. Linn. Soc. ser. 2, Bot. ii. 348. 

 Gmdia vatkecma, Engl, ik Gilg in Engl. Jahrb. xix. 207 ; Gilg in Engl. 

 PH. Ost-Afr. C. -283. G. latifolia, Gilg in Engl. Pfl. Ost-Afr. C. 283. 



Nile X.and. Ugaiula : Nandi ; Xzowi, 4()0()-G<)00 ft., Scoft-Elliot, 0(582! 

 Hiitish Ka^st Africa : iic.ir Sambuni, Kassner, 485 I I'kamba; K\iv\\, HiUehrandt, 

 2838! between Duruma and Tcita, llildchmndt, 2369! Itibe to (rilla Country, 

 Wakefield ! 



XVIozamb. Sistr. German Kast Africa; Tsanibara ; Xyika Steppe, Ilolsty 

 2415! Mialo, Hol.fi, 541! Tanjra; on the dry slopes of Lutindi, 1400 ft., Hoist, 

 54l-i>! Kilimanjaro; Hiino Ilivcr, 200() ft., Tolkeux, 1751 ! 5000 ft., Johnston ! 



2. L. polycephaluSy //. //. IT. Pearson. A small virgat^ shrub 

 about 2 ft. high witli erect glaucous branches. Leaves few, scattered, 

 erect, linear, 1 -nerved, narrowed at both ends, subacute, J-| in. long, 

 ^-1 lin. broad. Heads ovoid, few-floweted, pedunculate, in erect 

 racemes ; bracts of the involucre about 1), eiect, ovate or triangular- 

 ovate, rounded at the base, acute, obtuse or rounded at the apex, silky- 

 pubescent without, the inner about ^ in. long, fin. broad, outer smaller. 

 Flowers r>-merous, yellow, "with a delicious scent " {Lugard), pedicelled; 

 pedicel about | lin. long, with a ring of erect silky hairs at the summit. 

 Calyx-tube slender, pubescent above the articulation, densely villous 

 with long erect silky hairs below, about J in. long; lobes spreading, 

 oblong, obtuse or subacute, densely pubescent beneath, about 1| lin. 

 long. Petals 0. Ovary glabrous; style about H lin. long; stigma 

 cylindric. Fruit ovoid, about 2 lin. long ; pericarp thin, black, brittle ; 

 testa thin ; embryo large, 1^2 lin. long. — Passerina polycephalay 

 E. Meyer ex Meisn. in Linnsea, xiv. 501. Arthrosoleii pohjcephaluSy 



