Viscum.] fXIX. LORANTUACEiE (sPRAGUE). 395 



Berries pedicelled. 

 Berries smooth. 



Upper internodes conspicuously compressed. 

 Branchlets stout ; internodes up to |- in. 



long 1 8. 7^ Schimperi. 



Branchlets slender ; internodes up to 1 in. 



long 19. X^. Gatzei. 



Upper internodes not conspicuously com- 

 pressed. 

 Berries ellipsoid ; margin of hracts not 



scarious ...... 20. V. Hildebrandtii. 



Berries globose; margin of bracts scarious 21. V. Bagshawei. 

 Berries warted ...... 22. V. verrucosum. 



Berries sessile. 

 Branchlets very slender, less than 7/ lin. in 

 diam. near the apex ..... 23. V. tenne. 



Branchlets stout. 



Berry subglobose, smooth .... 24. V. capense. 



Berry ellipsoid-oblong, finely warted . . 25. V. Ment/harthii. 



Imperfectly known species ot this section . . 26. F. matahelense. 



1. V. Holstiiy Engl, in Engl. Jahrh. xx. 182. Stem terete, about 

 3 lin. in diam. 10 in. below the apex of the branchlets, very tinely ribbed 

 in a dried state, greyish-brown, glabrous, internodes up to IJ in. long; 

 younger branches and branchlets distinctly ribbed ; internodes of the 

 branchlets 5-10 lin. long, the uppermost one or two distinctly compressed, 

 strongly 6-8-ribbed, with 1 rib on each edge and 2-3 on each face. 

 Leaves broadly obovate or suborbicular, rounded at the apex, rather 

 abruptly contracted into a cuneate base, 7-12 lin. long, 4-9 lin. broad, 

 minutely crenulate, coriaceous, glabrous, inconspicuously 3-nerved from 

 the base (sometimes with 2 additional less distinct lateral nerves) ; 

 petiole ^-1 lin. long. Inflorescences axillary, sessile, fascicled or solitary. 

 Flowers monoecious, tetramerous, the female solitary, the male 2-8 

 together in each bracteal cup. Male inflorescence : Bracteal cup boat- 

 shaped, 1 lin. long, I lin. high including the lobes, f lin. high in the 

 middle ; lobes ascending, ovate, ciliate from within. Flower narrowly 

 obovoid-oblong in bud, \\ lin. long. Female inflorescence: Bracteal 

 cup I lin. high including the lobes, J lin. high in the middle; lobes 

 ovate, ciliate from within. Flower-bud Ij lin. long. Receptacle | lin. 

 long. Petals ovate-oblong, |-| lin. long in bud. Style J lin. long. 

 Berry oblong-ellipsoid, 2J lin. long, coar.sely and densely waited ; sub- 

 tending bracteal cup nearly \\ lin. high, lobes ascending, triangular- 

 ovate, acute or subacute, ^ lin. long. — Pfl. Ost-Afr. C. 167 ; Engl, k 

 Prantl, Pflanzenfam. Nachtr. i. 140. 



Mozamb. Dlstr. German East Africa: Usambara ; Kwa Mshuza, 5000 ft.. 

 Hoist, 9143 ! 



Viscum Holstii seems to differ from V. tuhercvlatum in little but the shape of 

 the bracteal cup. In the somewhat scanty material of V. Holstii available for 

 examination 1 have found that the number of bracteal cups in each axil varies from 

 one to five, and that each cup bears either a solitary female flower or 2-3 male 

 flowers. If this arrangement of the male and female flowers in separate bracteal 



