290 
or in irregular cymules, short, erect, com- 
monly destitute of bracteoles, or sometimes 
provided with a minute subulate bracteole 
at their base. Calyx persistent, — 
five-parted, somewhat urceolate at he 
base, tomentose on its outer sekai at 
the period of flowering scarcely half a line 
long, then gradually acquiring the length 
of about a line; sepals distinctly two- 
seriate ; ie two outer very minute, flat, 
linear, never imbricated, the three inner 
much larger, navicular, but without an ap- 
parent keel, obtuse, one of their sides ra- 
ther membranaceous, imbricated before 
and after flowering, but never twisted. 
Receptacle forming a very short stipitiform 
thecaphorum. Disk inconspicuous. Petals 
none. Stamens three, or less frequently 
four or five, inserted at the summit of the 
thecaphorum, opposite the interior sepals 
when equal in number, deciduous; fila- 
ments somewhat shorter than the calyx, 
linear-spathulate, complanate; anthers 
continuous with, and scarcely broader than, 
the filaments, roundish, obtuse, the polli- 
niferous conceptacles much narrower than 
the conneetivum. ‘Pistil shorter than the 
stamens. Ovary inadherent, very minute, 
subglobular, trigonal, 1-locular with three 
incomplete very narrow pellicular dissepi- 
ments; placentas three, filiform, very short, 
each of them adnate to the base of the 
anterior edge of the corresponding disse- 
punt ind dividing themselves into two 
inal, capillary, divergent, ascendent, 
short, ovuliferous funicles; ovules ortho- 
tropous! arrect, Style very short, recti- 
linear, erect, filiform. Stigma three-par- 
tite, each lobe forming a short denticulate 
crest. Capsule minute, inclosed in the 
interior sepals and somewhat shorter, sub- 
testaceous, pale-brown, smooth and shin- 
ing, obscurely pellucid and ovato- -trigonal, 
obtuse, Supported on a very short stipes, 
from which it breaks off soon after dehis- 
cence, unilocular, three-valved from the 
diaphanous pellicle; valves opposite the 
interior sepals, connivent, persistent, cym- 
DESCRIPTION OF SOME NEW CISTACEJE. 
biform, obtuse, about me of í 
placenta; placentas three, filiform, 
short, each of them ending in two capillary 
short, ascendent, persistent funicles; the 
one of these bearing a seed, the other the — 
nondeveloped ovule. Seeds orthotropous, E 
arrect, pt: on each placenta, minute 
(about half the length of the valves) — 
smooth and shining, brownish, obscurely 
pellucid, ovato-trigonous, obtuse; tegi- 
ment thin, crustaceous ; ; micropy 
corneous. 
circinnate, subcentral, voluminous in regar 
to the size of the seed; cotyledons linear- 
oblong, obtuse, flat; their summit curved 
towards the basis of the seed, and placed 
nearly in the centre of the circumvolution;. 
radicle slender, cylindrical, obtuse, 
as long as the cotyledons, dorsal obliqui 
ascendent. 
This plant, as the name given toitinthe 
Royal Botanic Garden of Berlin 
is a native of Mexico, where it was 
bably found by Dr. Scheide. 
imp l 
at Paris. 
HETEROMERIS. (nob.) 
(Helianthemi species auctorum, dame 
teribus omnino neglectis). wen 
Flores heterogenei; alteri ie 
minimi apetali, oligandri, oligospori, à 
(paucissimi, prius evoluti, longius F^ 
lati, in singulis inflorescentiis sepissime s0 
litarii) majores, 5-petali, polyandri, 
spori. Calyx persistens, accrescens, P 
funde 5-partitus, supra basi asin suburc 
2-seriata: 2 exteriora parva *"9" 
— 
interiora multo latiora, 
ecarinata, estivatione et post 
in annulum 
conspicuus. 
receptaculo inserta, quo 
