tered. There is no specimen in the herbarium at Kew 
with which our plant may be exactly matched. Although 
Mr. Lankester has not supplied any note as to the local 
name of this plant, we believe it to be that known in 
Costa Rica as the Tunilla, which is stated to bear an 
elongated, spinose edible fruit and fragrant flowers, and 
has been described by Dr. Weber as Cereus Tunilla. At 
all events the plant figured accords well with Weber’s 
account of the Tunilla and still better, perhaps, with the 
description given by the same author of Cereus Gonzalezii, 
a closely allied one subsequently regarded by Professor 
Schumann as merely a form of the Tunilla. This verdict 
of Schumann has been accepted by Dr. Britton and 
Dr. Rose, though these authors have deviated from both 
Weber and Schumann in that they regard the Tunilla as 
the type of a distinct genus on which they have bestowed 
the name Weberocereus. Whether our plant really be the 
Tunilla or not, it accords so well in essentials with 
Cereus that we have felt it desirable to retain it in that 
genus. The original type of Cereus Tunilla was found 
growing on an oak in the village of Tablon near Cartago, 
at a little over 6,000 feet above sea-level ; that. or 
C. Gonzalezii was collected at Pacayo, at a similar 
elevation. If, as we believe, the plant figured be Cereus 
Tunilla, the present is not the first occasion of its intro- 
duction to European collections; a young plant, grafted 
upon the Mexican Cereus nycticalus, Link, is reported to 
have blossomed at Paris in October, 1901. 
Descriprion.— Shrub of small size, with branched more or less creeping 
stems, emitting a few aerial roots. Shoots rather slender, green, usually 
4-angled, rarely 3- or 5-angled, angles blunt ; spine-cushions about 2 in. apart ; 
spines 4-3 in. long, divaricate, slender to rather stout. Flowers lateral, 
solitary, spreading, about 2} in. long. Calyx brownish; tube about 1 in. wide, 
copiously setose near the base; lobes oblong, rather blunt, spreading, #-1 in. 
long; scales shorter than the calyx-lobes, acute, reflexed. Petals elliptic- 
oblong, blunt, somewhat spreading, numerous, rose-lilac. Stamens many, 
included ; anthers oblong, yellow. Style included. Frwit elongated, setosely 
spinescent, yellow, edible. ee 
Tas. 8779.—Fig. 1, pulvinus with spines; 2 and 3, spines; 4 and 5, stamens: 
—all enlarged, 
