REVUE BRYOLOGIQUE. 103 
pairs — or even to a single pair, as they sometimes are, 
_although very rarely — the inflorescence is often purely 
female ; but where the involucres are large and lurgid , and 
consist of numerous bracts, each bract encloses antheridia , 
and the inflorescence is consequently paroicous. The capsule 
in these large involucres is occasionally abnormally enlarged. 
1 have found one, in the Castie-Howard station, 75"? long 
by “65% broad, or three times the ordinary size. The inner- 
most pair of bracts, enclosing this enormous capsule, were 
cordato-reiform, nearly twice as broad as long (1*1 x 2‘0%), 
shortly and acutely bilobed ; but the stem leaves and every 
other part of the plant were exactly as in plants of ordinary 
size, growing side by side with this monster. 
Local forms show variations worthy to be noted. In the 
Black-down plant, besides the short fertile stems, there 
usually arise from the same rhizome sterile stems, or bran- 
ches clad with equal-sized leaves; but in the Pyrenean and 
the Castle-Howard plant these sterile stems are rarely pre- 
sent. The plant of the plains flowers at the apex of the 
simple stem, which rarely ionovates, and probably dies away 
after fruiting, i, e. it is annual; but the subalpine plant 
nearly always innovates from one lo three times aud is 
plainiy perennial; and yet I can detect no other important 
difference whatever. The specimens given in my copy of 
G. et R. Hep. Eur. , under no 648 (subnom. « Sarcoscyphus 
adustus Spruce) » are exacily the same small form of 4? 
= ustulata as that of Blackdown, to which they correspondin al 
essentials. The plants have the same embrowned, or scorched 
appearance, and are facially subcompressed. Lower leaves 
twice as broad as the stem, acutelÿ bifid to —; medial cells . 
about ==» in diameter. Bracts somelimes only one or two 
pairs, wbich are occasionally anantherous (flore mere 
foemineo); usually however they are in about three pairs 
 turgid at the base, and enclose twin antheridia, as is normal 
to the species. The fruit is equally perfect on the unisexual as 
on the bisexual stems. 
There is no admixture in my copy of Hep. Eur., under no, 
648, of any other Marsnpella, but only of a moss (Brachyodus 
trichodes) ; in M° Pearson’s copy, however, there is no #. 
ustulata, but only what ch . 
| trium adustum Nees; while in Dr Carrington’s copy, no 648 
consists solely of a bleached form of M. olivacea mihi. Yet 
_ allthe specimens distribnted under this no. in Hep. Eur. 
_ purport lo have been gathered by Herr Limpricht ina 
_single locality : the Weiss-Wasser in the Riesengebirge. — 
These facts are very instruclive, as showing how easily the 
ost experienced ist may mistake the id 
Limpricht considers true Gymnomi- . 
