46 
basin oblongo-hexagonum tenue hyalinum, vel lineare seu 
sinuosum incrassatum. Peristomium, cum ‚adest, simplex, 
16-dentatum, dentibus transverse ‘articulatis, lanceolatis 
integris vel cribrosis, vel ad basin usque bifidis cruraque 
filiformia sistentibus. | 
1. GRIMMIA Ehrh. 
Plantae dichotome fastigiato-ramosae, pulvinatae, rarius 
caespitosae. Calyptra nune parvula pluriloba, папе. major 
submitraeformis basi pluries fissa, nune lobato- vel sim- 
pliciter cucullata. Peristomii dentes lanceolati, plani, sub- 
-integri, cribrosi vel ad medium et infra bi-trifidi, sicci- 
tate patuli vel erecto-patentes et subincurvi, rarissime 
omnino deficientes. 
Subgea. |. Schistidium. 
Foliorum rete basilare emarginato-quadratum et rectan- 
gulum. Flores monoici, terminales. Calyptra minuta, lo- 
bata, solo operculo insidens. Capsula in pedicello brevi 
recto immersa, aequalis, operculo late convexo cuspida- 
to systylio clausa; peristomii dentes lanceolati, cribrosi, 
siccitate reflexi, raro rudimentarii. 
Sect. Peristomium perfectum. 
1. GrimmiA APOCARPA lledw. 
Robustior in caespitulos laxos fuscescentes congesta, 
aetate provecta pluries dichotome ramosa. Folia ex ere- 
eta basi patentia sicca erecta, lanceolata et elongato-lan- 
ceolata, basi concava dehine profunde carinata, margine 
recurvo apice obtuse dentata, superiora in pilum aspe- 
rum brevem producta, costa superne hirta infra apicem 
evanida; perichaetialia latiora, tenuiora, tenuius costata, 
pilo breviore vel nullo. Capsula ovata, crassiuscula, pe- 
