Aphylla. lll 
Qualities like the Iceland moss, to which it is Joretty 
closely allied. ‘ 
1800. Sticta pulmonacea. Lungwort. Yellowish civ.ereous. 
1 to 2i. On the bark. of trees. W. Tonic , demul- 
cent, nutrient, like the Iceland moss. (Cetr7 ria islan- 
dica. Lind. Nat. Syst. 329.) 
1801. Usnea florida. Greenish grey. 2to3i. “Winter. On 
the ‘branches of trees. W. 
1802. U. strigosa. Dirty cinereous. 2to3 i. On the trunks 
and branches of dead trees. Dayton, /), 
CCLXXI. FUNGI.—TueE musuer yom rrise. 
A most extensive natural order, embrar:ing an almost in- 
definite number of species, that hold the‘sr rank in the lowest 
grades of the vegetuble kingdom. They occur plentifully in 
the Western Statcs; but (were it pe,sible to do it) it would 
not comport with the design and liviits of this publication to 
give a synopsis of them. 
CCL XI ALG/L.—'f we sEa-wEED TRIBE. 
This or¢er embraces those obscure productions of the 
aqueous element, which are |cnown under the names of sea- 
weed, frog-spittle, river-hair, Vad green scum. Our fresh water 
alge: have received very lit.tle attention, though they are met 
with in every fountain ar.d stagnant pool. They make the 
‘most delicate and beav‘tiful specimens, when properly pre- 
served. In fitting then for the herbarium, the following 
method may be pursued. 
Cut a sheet of witing paper into 8, 16 or 32 equal pieces, 
according to the »»roposed size of the specimens. Wash the 
alge by gently moving or shaking them inwater;—detach 
enough for a specimen, carry a piece of paper underneath, 
and raise it s)owly from the water. By a short exposure to 
the air or to’sunshine, the algz will become so dry as to be in 
no danger of adhering to the leaves of a port-folio. They 
may then be pressed and thoroughly dried, between folds of 
bibulous paper, like other plants. (See West. Jour. Med. 
Phys. Sci. viii. 29.) If these manipulations are skilfully ac- 
complished, the minutest filaments are elegantly displayed 
upon the paper, and remain thereunto permanently attached. 
The green scum that is often seen on stagnant waters, may 
be fished up at once by paper without previous washing. 
In my botanical rambles through the Miami country, last 
season, I collected and preserved in this manner near a dozen 
subnaersed, and two or three floating species. 

