%, 
about three lines long, tubular, with five very prominent ribs, termina- 
ting in very short ae COROLLA “ _— a tube twice as long 
as the calyx, d d llen towards the top, 
limb about half an inch dinmetell the divisions early equal, oblong, 
or wedge-shaped, blunt or emarginate, wavy on the margins. Drupe 
about half the length of the calyx, which opens 7 4 as the fruit 
ripens. 
Poputar AND GeEocrapHicaL Notice. The genus Chascanum 
contains five or six species spread over the Cape Colony, and 
some of them not uncommon there. The present species and two of 
the others have long been known to botanists, but have been, on ac- 
count of some yague resemblance in the corolla, till lately placed in 
Buchnera, which belongs to a different natural order. The true Buch- 
nere have always the many-seeded two-celled capsule of the Scrophu- 
Jariacez, whilst Chascanum has only one seed in each cell, and has 
not only all the essential characters of Verbenacee but comes very 
near to the true Verbenas, from which it chiefly differs in the constant 
abortion of half the ovary, and in the singular manner in which the 
calyx opens at the base as the seed ripens. Like the Verbene, the 
Chascana are chiefly found in warm dry situations, and delight in 
rocky hills. G. B. 
_ Intropuction; WuerE crown; Cutrure. Our present species 
was introduced to the Royal Gardens at Kew, in 1821; but has re- 
mained a scarce plant, and been little known to cultivators in general. 
A specimen was obligingly supplied to our artist from the Kew Gar- 
dens, in the spring of 1840, from which the original of the annexed 
plate was drawn. It requires greenhouse protection during winter, and 
should be potted in sandy loam, mixed with a little peat. It requires 
to be very well cane 
‘Derivation or THE Names. 
Cuascanum from yaoxavoy, a word derived from yatyw to gape, already occur- 
ing in Dioscorides as a synonyme of Xanthium and applied to the present ge- 
_ us by Ernst Meyer as expressive of i chief character, the gaping calyx. 
pogrom, with wedge-shaded leave 
SynonyMEs, 
Cuascanum conEerrortum. E. Meyer’s Commentationes, p. 276. 
BUCHNERA CUNEIFOLIA. Thunberg: Flora Capensis edit. ee P 466. 
PHRYMA DEHISCENS. -Linneus the younger, Supplementum, page 27 
