SYNOPSIS OF THE BUCHNERES, 
determine to which group they should be 
. referred, that I have attached little or no 
_ importance to that character. At the same 
_ time the species now known consist of seve- 
ral groups really very different from each 
. Meri in Nappearanoe, and I have therefore 
; ugh principles. 
The ccm has afforded the first charac- 
ters. In some it is tubular, shortly divided 
into five teeth, disposed in two lips, which, 
as the capsule swells, are split nearly or 
—a to the Nin Ge "m others the five 
ually 
split to below the middle. This distinclion 
appears also to be universally accompanied 
by another circumstance, that in the former 
group the withered corolla remains even 
at the maturity of the capsule, whilst in 
the other it falls off long before. 
The first of these groups again contains 
= two series of plants, too different in habit 
be united into one genus, and the sta- 
mina have furnished a good character. In 
the one which contains most of the Cape 
Erini, and for which I have therefore re- 
tained Don's name of Nycterinia, the up- 
. per pair of stamina are inclosed in the tube 
with oblong-linear anthers, and the lower 
pair are placed at the mouth with shorter 
ovate anthers, sometimes sterile or entirely 
_ Wanting. In the other series, which I have 
. named Polycarena, from the number of 
small heads in which the flowers are usu- 
ally collected, the anthers are all similar 
to each other, and appear at the mouth of 
the tube, or are quite exserted. 
Nyeterinia will naturally follow imme- 
.. diately after the Eubuchneree. Like them, 
— of the species dry black, and the 
‘rating the sical into two sections, too 
ae closely allied i in all other characters as well 
n, (which is probably E. ethiopreus, 
A TRIBE OF SCROPHULARIACE X. 359 
Thunb.), and five new species, to the second 
Manulea divaricata, Thunb., and probably 
also Erinus villosus, Thunb., with two new 
species. 
Polycarena, with the calyx and persist- 
ent corolla of Nycterinia has a very differ- 
ent habit. It consists of low-growing an- 
nuals, the flowers are often very small, 
collected into heads which afterwards 
lengthen out into spikes, and the flowers, 
in the dry state at least, are yellow or 
whitish, without ever turning black. The 
floral leaf adheres to the very short pedi- 
cel, or even to the calyx, as in Phyllopo- 
dium. In the Polycarene capensis and 
gilioides, the tube of the corolla is elon- 
gated, but the habit and stamina suffici- 
ens distinguish them from Nyclerinia. 
o Polycarena I refer the Manulea 
plantaginea, capillaris and ethiopica of 
Thunberg, which appears different from 
the Buchnera ethiopica of Linneus, and 
the Buchnera capensis, Linn., or Manulea 
capensis, Thunb., with four new species. 
The second group of Manulee, or those 
with a regular bifid calyx and a corolla al- 
most always deciduous, may also be sub- 
divided according to whether the stamina 
be exserted with uniform anthers, or in- 
cluded, two of them at least, within the 
tube of the corolla with dissimilar anthers. 
Amongst those which have the exserted 
stamina, the Buchnera viscosa, Linn., (to 
whichIrefer the Manul rulea, Thunb.) 
must stand alone, on account of its rotate 
corolla. It forms my genus SpAenandra. 
The remaining species form two groupes so 
very different in habit, that although the 
characters are not so positive as could be 
wished, I have adopted them as separate 
genera 
The one which I have called Phyllopo- 
dium, is closely allied to the small-flowered 
Polycarene, and indeed is scarcely to be 
distinguished, but by the equally five-cleft 
calyx and more deciduous corolla. Like 
in Polycarena, the floral leaf adheres to 
the pedicel (usually very short) so as to 
i ee to proceed from its apex, whence 
This character and the - 
he generic name. 
the habit, alone 
Br. corolla, besides 
