102 HA>'i>y BOOK OF 
Perclianco you have not thought respecting thorn : to you 
they are nameless even. Let it not ho so, however, for the 
future ; for every living thing, as I have often said hefore, 
hath its own hrief history, which we should endeavour to 
understand nay more, its characteristic structure and vary- 
ing embellishments. 
Take, for example, the Brynm triqnctrum, and bear in 
mind, while looking at it, that the following subdivisions 
pertain to the Brya, which it is needful to remember : 
Capsules sessile, or near!// so. Capsules on fruit-stalks, upright. 
1. Stemless. 
3. Stems trailim 
2. Upright. 4. Stems upright. 
Iloundish, egg-shaped, and oblong capsules, pertain to the 
family of Brya. 
Capsules on fruit-stalks, leaning. 
1. Stem none, or very short and unbranched. 
2. Stems upright. 
Capsules on fruit-stalks, drooping. 
1. Stem none, or very short and unbranched. 
2. Stems upright. 
B. triquetrum, or Ventricose bog-fringe moss assigned 
by Withering to the family of 3fnimn ; by Messrs Hooker 
and Taylor to that of Bryum is described by the latter as 
having branched and elongated stems ; lance-shaped, acute, 
sorrated, and reticulated leaves, with pear-shaped capsules ; 
the fruit-stalks are very long, and the whole plant ausAvers 
to the derivation of the generic appellation JBrt/um, derived 
from a Greek word /3/oww, signifying to sprout or shoot up, 
in allusion to the perpetual greenness and vivifying powers 
of this somewhat rare plant. Under its name Mnium, the 
Ventricose or bog-fringe inosS is mentioned by able bota- 
nists as not unfrequent in turf-bogs and marshy places, also 
