VisCUVl.] CXIX. LOHANTHACE.E (sPRAGUE).. 397 



In East Africa V. tuber ctilat urn lias bren found oiir a. great variety of hosts, 

 incliulincr Gymnosporia Senegal ensis, Loes,, Rhus qlauc esc ens, K. Rich., and Termi- 

 nalia Brownei, Frcs. * 



3. v.. longiarticulatum, Engl, hi Engl. Jahrb. xl. 540. Inter- 

 nodesof the ultimate braiichlets.1 J-2 in. long, much flattened, finely ribbed 

 on the faces, broadened from below upwards, 1 J-l| lin. broad shortly 

 below the apex, then slightly narrowed again ; fower branches terete, 

 internodes 2J-3 in. long. Leaves very shortly petioled, elongate- 

 oblong or lanceolate-oblong, usually subfalcate, acutely apiculate or more 

 or less rounded at the apex, cuneate into the base, 2-3^ in. long, 4—1 

 in. broad, thinly coriaceous, glabrous, 3- or o-nerved from the base ; 

 nerves distinctly raised on the upper surface, less evident on the lower, 

 the three middle ones running to the apex of the leaf, the two outer 

 much less distinct; petiole J-IJ lin. long. Inflorescences axillary, 

 sessile or subsessile, solitary or fascicled. Flowers tetramerous, 1, 8, 

 or 5 in each axil, the female solitary in each bracteal cup. Female 

 flower: Bracteal cup subsessile, | lin. high including the lobes; lobes 

 erect, ovate, obtuse, J lin. high, margins ascending, diverging at right 

 angles or less. Receptacle cupular, f lin. long, very finely tubercled in 

 the upper part. Calyx present as a mere rim inside which the petals 

 are inserted. Petals deltoid, obtuse or subacute, over J lin. long, -^-J 

 lin. broad at the base. Style shortly pyramidal, 3 lin. long. 



XVIozamb. Slstr. German p]ast Africa : Eastern Usarabara; Aniani, 3100 ft., 

 WarnecJce, 374 ! 



The above description has been adajited in large part from Engler's, owing to the 

 scanty material available for examination at the time of writing. 



4. V. neryosum, Ilochst. ex A. Rich. Tent. Fl. Abyss, i. 338. 

 Usually greenish -yellow in a dried state. Main stem terete ; branchlets 

 angular, ribbed, the ultimate ones compressed, about | lin. broad 

 towards the apex, slightly tapering downwards. Leaves subsessile or 

 shortly pstioled, elliptic or ovate- elliptic, obtuse or rounded at the apex, 

 more rarely subacute or acute, especially in a young state, rather abruptly 

 contracted into the base, i-l| in. long, 4-15 Tin. broad, coriaceous, 

 glabrous, distinctly 3-5-nerved, finely reticulate, dull ; nerves more or 

 less raised, especially on the upper surface; petiole J-1 lin. long. 

 Cymules axillary, solitary or one on each side of an axillary branch, 

 peduncled, 3-flowered ; floweis mona^cious, tetramerous, either all of the 

 same sex or male and female together in the same cymule. Peduncles \-l\ 

 lin. long, those of the male or mixed cymules rather shorter than those 

 of the female. Bracteal cup boat-shaped, |-l lin. long, J-J lin. broad, 

 minutely ciliate. Male flower ellipsoid or obovoid in bud, |-1 lin. long, 



• solid base xj— J- lin. long. Receptacular tube |-J lin. long. Petals 

 deltoid-ovate or ovate, J lin. long, ^V-J lin. broad at the base. Anthers 

 inserted about the base of the petals, obtusely trigonous, elliptic or 

 suborbicular in outline, ^ lin. long, f-yV ^^^- broad. Female flower : 

 Receptacle subclavate, J lin. long, | lin. in diam., slightly verruculose 

 or smooth, rapidly becoming ellipsoid-oblong and then ellipsoid after 



