comparative length of the perianth-tube of Zacsonia, which is 
shorter in this species than in various Brazilian plants uni- 
versally referred to Passiflora. Could genera be limited by 
geographical distribution, Zucsonia would (as Dr. Masters 
indicates) be defined as being confined, as far as is hitherto 
known, to the Andes of South America, whilst the Passiforas » 
are spread over the warm regions of the whole American 
continent, and are found also in Asia and Australia. 
Descr. Stem climbing, nearly terete, and as well as the 
petioles leaves beneath stipules bracts and perianth externally 
finely pubescent. Leaves about four inches long, coriaceous, 
3-lobed to about the middle, finely serrate ; lobes broadly 
oblong, obtuse or subacute, dark green above, pale beneath, 
base rounded truncate or subacute; petiole about one inch 
long, with three to four glands. Stipules one inch in diameter, 
dimidiate-ovate, deeply toothed, convex, Pedunele longer than 
the petiole. Bracts at some distance from the calyx, elliptic- 
ovate, acute, serrate, pubescent, free or united from the base 
upwards, sometimes for half their length. Perianth-tube 
about half an inch long, base inflated and 10-lobed; limb 
four inches in diameter, vivid scarlet; corona double ; outer, 
at the mouth of the tube, of many series of short blue hairs, 
the inner row of which connives around the column ; inner, at 
the top of the inflated base of the perianth, formed of a 
sigmoidly-inflexed membrane. Styles tree—J. D. H. 
ein 
Fig. 1, Vertical section of perianth tube :—somewhat magnified. 
