452 Lxix. RUBiACE^. [Justenia 



coriaceous leaves, interpetiolar long-subulate undivided stipules, 

 and small flowers in short subsessile or sessile bracteolate terminal 

 clusters. 



Named in honour of Mr. Frederick Justen, F.L.S., an intimate 

 friend and one of the acting executors of Dr. Welwitsch. 



1. J. orthopetala. 



A scandent much-branched shortly pubescent shi-ub ; branches 

 and branchlets opposite, quadrangular, flexvious, variously curved 

 and arched, at length hanging down, densely pubescent towards 

 the extremities ; leaves opposite, ovate, pointed and apiculate at 

 the apex, rounded or nearly so at the base, papery-coriaceous, 

 glabrous except the ciliolate margin the puberulous midrib and 

 the 2 or 3 pairs of slender lateral veins, apparently deciduous, 

 I to 2 in. long by ^ to 1 in. broad ; petiole about ^ in. long, 

 pubescent ; stipules interpetiolar, connate below, shortly sheath- 

 ing, lanceolate, subulate, prolonged, persistent ; flowers about ■!■ in. 

 long, sessile or subsessile, densely crowded, several together in 

 pubescent clusters of g to | in. in diameter; bracteoles stipuliform, 

 small, pubescent ; calyx about ^ to |- in. long, pubescent ; tube 

 short ; lobes of the limb rather unequal, ^o ^^ s "^- ^^^E^ pubescent 

 or on the fruit subglabrous outside, glabrous inside ; corolla 

 white, rather fleshy, i in. long ; tube very short, glabrous inside 

 below the bearded throat ; lobes -L in. long, straight, somewhat 

 hairy on the back ; anthers y\- in. long, glabrous ; style rather 

 shorter than the corolla ; fruit ^ to | in. in diameter, baccate 

 (Welw.), several together, subsessile, in clusters of about i in. 

 in diameter ; seeds angular, subpyramidal, about -^^ in. long, 

 glabrous, minutely punctate. 



GoLUNGO Alto. — In primitive forests and their outskirts among 

 the mountains of Queta, sporadic but not uncommon ; near Caenso, 

 fr. beginning of August 1855 ; near Capopa, fl. end of August ; near 

 Guhanho, fl. beginning of Nov. 1855. No. 3165. 



12. MUSS^NDA Burm., L. ; Benth. & Hook. f. Gen. PI. ii. p. 64. 



1. M. rivularis Welw. ms. in Herb.. 



A stout shrub, climbing far and high to 30 ft. ; branches 

 obtusely angular ferruginously hispid-tomentous and leafy towards 

 the extremities ; leaves opposite, oval or more or less ovate, 

 shoi-tly acuminate apiculate or obtuse at the apex, obtuse or more 

 or less wedge-shaped and often unequal at the base, thinly 

 coriaceous, hispid-pubescent on both faces especially along the 

 principal reddish-brown veins beneath, lamina rather paler green 

 beneath, 3| to 6 in. long bj' 2 to 3 in. broad, lateral veins 10 to 

 12 on each side of the midrib; tertiary veins sub-ti-ansverse ; 

 petiole i to I in. long, ferruginously hispid-tomentose ; stipules 

 ovate, or lanceolate from a broad base, ferruginously hispid- 

 tomentose oiitside, usually bifid in the upper half, about | in. 

 long, segments subulate; flowers bright yellow, arranged in 

 terminal, r.ather densely hemisphei-ical, ferruginously hispid- 

 tomentose cymes about 6 in. in diameter ; bracteoles ovate, rather 



