350 SYNOPSIS OF THE BUCHNERE4, 
distinguish the genus from Chenostoma. 
In appearance some species come so near 
to the Selagineæ as only to be known from 
them by an inspection of the ovarium or 
fruit, on which account there is much doubt 
about the old species. I have, however, 
determined with tolerable certainty, as 
species of Phyllopodium, the Manulea 
cuneifolia, capitata and heterophylla of 
Linn. and Thunb., and added three new 
species. 
Next to Phyllopodium and Sphenandra, 
I should place Chenostoma, which like 
them has exserted anthers, but has a co- 
rolla contracted at the base into a tube 
which is often elongated, and always cam- 
panulate or infundibuliform at the orifice. 
In this respect Chenostoma differs also 
from the Manulee with included stamina, 
and it is most readily distinguished from 
Phyllopodium by the floral leaves, which 
do not adhere to the pedicel. It includes 
the Manulea linifolia, integrifolia, revo- 
luta, cephalotes, cordata, and hispida of 
Thunb., which last is the M. opposvtiflora 
Vent, with the Buchnera ethiopica, 
Linn., and feetida, Andr. (Manulea fætida 
and alternifolia, Pers.), and seventeen 
species which I have not been able to refer 
to any published descriptions. 
The remaining Manulee, with a five-cleft 
calyx, deciduous corolla, and included dis- 
similar anthers, again comprehend two 
groups different in habit but difficult to 
characterize, at least from dried specimens. 
To the first of them I have given the name 
of Lyperia, partly because it contains the 
Erinus tristis, and other species with that Thun 
peculiar-coloured flower, and partly because 
the corolla almost constantly, and often the 
whole plant dry black; on which account 
no doubt it is that they seem to have been 
as often referred to Erinus as to Manulea. 
It is characterized chiefly by the two upper 
lobes of the limb of the corolla forming a 
sort of upper lip, and the tube being more 
E es - gibbous or incurved near the apex, 
and usually. viscous. In the true Manu- 
, on the contrary, the lobes of the co- 
are equal and equidistant, or the four 
upper ones are rather longer and more 
A TRIBE OF SCROPHULARIACEE, 
joined than the lower one (whence the 
name Manulea), the tube is straighter and - 
either downy or glabrous. In inflorescence 
they are very different; in Lyperia the 
pedicels are constantly uniflorous and ax- 
illary, or if racemose or spicate, they have 
leafy bractes at the base, whilst the flowers 
of Manulea usually form a compound ra- 
ceme with many-flowered peduncles, or if 
the raceme is simple the bractee are very 
minute. In Lyperia, moreover, the flow- 
ers are never of that bright orange-red 
which is the usual colour in Manulea, In 
both genera the tube of the corolla is long 
and slender, the orifice not dilated, and the 
lobes of the limb vary from entire to emar- 
ginate, and even bifid 
To Lyperia may be referred the Erinus 
simplez, incisus, and tristis, Thunb., the 
E. fragrans, Ait, the Manulea micro- 
phylla, argentea, pinnatifida, Thunb. 
Buchnera pedunculata, Andr., Man. viola- 
cea, Link, which appears to be the Erinus 
patens, Thunb., and sixteen species, which 
I believe to be hitherto unpublished. Ma- 
nulea, as above defined, would be limited, 
among published;species, to the M. incana, 
tomentosa, cheiranthus, thyrsiflora, corym- 
bosa, altissima and rubra of Linn. and 
Thunb., the M. angustifolia, Link, being 
referable to M. rubra, and M. rhynchan- 
tha to M. cheiranthus. I have, in addition. S 
to these, now described twenty new spe- 
cies. 
Of the remaining Buchneree of authors, 
Erinus tomentosus, Thunb., Manulea an- 
— pingui and Airía, Linn. or 
Manulea crystallina, Weinm., 
are RITEN either Lyperie or Chenos- 
tomata, but 
any of the specimens before me; B 
nera canadensis, and Erinus Peruvianus | 
and laciniatus, Linn., have already been 
referred to Verbena, and Buchnera grandi- — 
flora, Linn.to Escobedia, Buchosa c. 
gine- 
cuneifolia an 
me genus to which Mr. E. Meyer has p xd 
uchn. 
the MSS. name of Chascanum; B 
cordifolia, Linn., is Streptium asperum, 
Roxb., and Erinus Africanus, Schum. Pl. 
Guin. 278, (excl. Syn. omn.) is evidently 
cannot recognize them in 
iiano 
