THE SECOND PART. m 
iinde the time of Linneus , their fituation not yet determined. 
A revilal of the works of Linneus defirable. CMs Cryptoga- 
mia improved fince his time. Genera of Moffes diftinguifhed 
by their outer habits, and fituation of their Capfules. Re- 
femblance of Moffes to the Pine tribe; 180, ilownefs of their 
growth. Difference in the leaves of Moffes.- Male and fe- 
male flowers placed feparately. Calyx, termed by Linneus 
Calyptre. From the prefence or abf.nce of the Calyptre 
Linneus has diftinguiflied the Genera. Operculum of Moffes, 
a curious microfcopic object; fliould be examined with mag- 
nified drawings. 181, Parts of the Fructification of Moffes 
mzy be feen, in an early ftate, with the afliftance of glaffes; 
Hedwig's difcovery of the difference betwixt the leaves of the 
plant, and thofe which form the fructification buds; efteems 
the bud-leaves true involucres ; increafe in fize as the capfules 
grow towards maturity. Hedwig's- refearches promife great 
information on the fubject of Moffes. 182, His plates not of 
much ufe to young Botaniffs. Mr Curtis' s figures and de- 
fcriptions accurate and plain. Mr Curtis does not venture 
to decide whether the powder contained in the Capfules of 
Moffes is Anther-duft or Seed. Hedwig afferts that the Cap- 
fules are true Seed-veffels, Young Plants railed from the 
Capfules of Moffes, by Hedwig j fowed, by Dillenius, without 
fuccefs. Caufe from which thefe different refults of the fame 
experiment may have arifen. Defcription of Curled Bryum. 
183, Hedwig's oblervation upon the expanfion and contraction 
of the Fringe of the Capfule ip dry and moift air ; clofes, even 
from the moifture of the breath. Curious mechanifm of the 
Capfule of Moffes ; contents of the Capfule protected by the 
fringe found under the Calyptre. Calyptre of Bryum Undulatum 
defcribed. 184, Mechanifm of the fuppofed Fructifications 
of Moffes and Ferns equally curious; both feem formed for 
the protection and difperfion of their feeds; the manner in 
which the feed is produced unknown, unlefs Hedwig's re- 
fearches may be relied on. Magnified leaf of Bryum Un- 
dulatum fhows it's undulated edges. Bryum Undulatum 
b 3 produces 
