102 REVUE BRYOLOGIQUE. 
bracteis celatas, hinc solum connatas, tergo liberas vel basi 
adnatas redactum ; calyptra semi-infera, dimidio supero pistil- 
lidiis sterilibus coronata. 
Sarcoscyphus Sprucei Limpr. Jahresb. Schles, Ges. 4881 — 
mihi nondum visa — differt (sec. el. auctoris descripl'onem) 
florescentia synoica (1); foliis ramorum  sterilium caulis 
diametro æquilongis (in nostra duplo longioribus); cellulis 
fol mullo majoribus (025 ---28wr, contra ‘018 —"29 in M. 
ustulata; bracteis exterioribus rolundo-quadratis basi kaud 
cordatis, sinu apicis pro more rotundato, supremis (perichæ- 
 Hialibus) constanter acutilobis (in nostra autem lobi sæpe 
rotundali). De situ pistillidiorum sterilium nihil dicitur. 
 Nardia sparsifolia Lindberg (Sarcose. sparsifolius ejusd. a. 
1868), 2-3 plo major est quam M. ustulata. Folia, eadem fere 
_ forma, laxiora sunt, superiora sola imbricata ; omnia, tam 
Caulina quam involucralia, basi cordata. Anne pro varieta- 
… tibus unicæ speciei habendæ sunt, incertus sum, Sin est ut 
_ ad unam et eamdem speciem pertineant, nomen Lindbergiüi 
__ Quia antiquius prævalebit, 
Nardia varians Lindberg, Musc. Scand. (1879) sec. descript. 
_ L c. diversa erit foliis densis magnis subrotundis , præci- 
_ pueque « florescentia nunc paroïica nunc dioica.…. nunc 
perfecte autoica in ramis arcuato decurvis. » 
_ Sarcoscyphus neglectus Limpr. a #/. ustulata differt caule 
arcuato ramos graciles proferente ; cellulis folii multo mino- 
CHR 
ribus ais); bracteis convolutis, cæterum foliis con- 
formibus ; colore nigro nilido, ete. 7. 
Marsupella ustulata grows in broad low patches, of a 
reddish or purplish brown colour on the surface — as it 
. were broiled or scorched — à tint that quite recals that of 
the flower-buds of Orchis ustulata. The parts of the leaves 
and stems not exposed to the light are paler and more tender. 
On stones in moist siles under trees, the plants are often 
 Sreener, only the tips being slightly embrowned: but on 
. exposed subalpine rocks the whole plant becomes of a purple 
black. Both in England and the Pyrenees I have found the 
lants liable to be disfigured by the presence of mucus 
siens extraneous) which often arrests the development 
Of the leaf-apices, rendering them obtuse where they shoul 
Ho douié Fa LE 
In all the forms of Y 
t 
