Brasilian desert, near the river San Franeisco, whence it 
takes its name. 
Our drawing was made at Syon, in September, 1846. 
Fig. 1. represents the stamens, as they stand inside the mouth 
of the corolla ; 3. shews the form of the stigma and the scars 
which are produced by the adhesion of the connective of the 
anthers to that organ. Fig. 2. represents the ovary, minus 
its style, the five large glands of the disk, and the ring of 
small teeth which grow between the base of the calyx and 
the tube of the corolla: a curious structure, not uncommon 
among Dogbanes, but of whose real nature no very satis- 
factory explanation has yet been offered. 
New GARDEN PLANT. 
CATASETUM SERRATUM. 
C, serratum ; labello carnoso galeato resupinato subcompresso postice sensim 
Saccato apice integerrimo emarginato lateribus latě sejunctis argute 
denticulatis, cirrhis haud columnà longioribus. 
Nearly allied to C. maculatum, from which it differs in 
the sides of the lip not curving inwards, in the shortness of 
the columnal cirrhi, and in the emarginate apex of the lip. 
The flowers are of nearly the same size, but not spotted ; they 
are pale green, with the convexity of the lip yellow. Sent 
from Panama to Messrs. Veitch by Mr. Lobb. “We received 
it from Exeter in September, 1845, with a statement that 
it 1s “a most abundant bloomer, having long spikes with 
from ten to twelve flowers on each spike, and powerfully 
scented.” 
