316 WILSON’S OBSERVATIONS. 
than the bottom. Stigma with a deep central depression. 
Embryo at one end of the seed, enclosed within a large pro- 
portion of albumen. 
14. Cheiranthus fruticulosus. Conway and Rhuddlan Cas- 
tles, N. Wales, March 29, 30, 1830. The pubescence, in 
every part, even that of the germen, consists of spindle-shaped 
or acicular bristles appressed to the surface of the plant 
and attached by the middle only, moving easily on a centre like 
the magnetic needle; the bristles are placed longitudinally. 
No instance of stellate or simple pubescence observed. 
15. Carex cespitosa and stricta. Woolston, near Warrington, 
May 14,1829. So far as the distinctions between these Carices 
depend on the shape of the mouth of the corolla, I am now 
inclined to think them fallacious. What I take to be C. 
stricta has the mouth of the corolla destitute of spinulee, 
whereas in C. cespitosa it is fringed almost like the Welsh 
specimens of C. stricta. 
-~ 16. Eriocaulon septangulare. Dromuchty Lake, near 
Kenmare, August 7, 1829. Root rather progressive than 
creeping, resembling in this property Subularia aquatica. 
The corolla in both kinds of flower consists of two petals, or 
segments—the two other floral coverings I judge to be a two- 
leaved calyx, and there is also an outer scale or bractea larger 
than the rest of the coverings. In the fertile flower the 
petals seem to be free, of oblong form, bearing, like those of 
the male flower, a roundish gland near the apex. Germen on 
a short stalk. Stigmas two. Stamens four, abortive in the 
fertile flower, and in the male flower always attended by an 
abortive pistil; both are arranged indiscriminately on the 
common receptacle. | 
When the bottom of the lake consists of peat, as in Dro- 
muchty Lake, the buoyancy of the herbage frequently causes 
a separation of a large tuft from the adjacent soil and it 
then forms a submersed and almost floating island; but 
when the bottom is gravelly as in Clunie Lake, 3 or 4 miles 
to the westward, no such effects occur. 
VT. "frichomanes brevisetum. Turk waterfall, July 51. 
