POTTIOIDEAE. GRIMMIA. 483 
in ped. brevi maxime decurvato minute ovalis sublaevis, 
annulo latiusculo, dentibus ad medium bifidis latiusculis. 
Patria. Algeria: Durieu. 
Foliis subito maxime et constanter recurvis ab affi- 
nibus praecedentibus primo adspectu distinguenda. 
B. Jnufloresc. monoica, 
19. Gr. Eckloni Spreng. (Syst. Veget. IV. H. p. 
321.); habitus Gr. trichophyllae; folia caulina densissima, 
perfecte anguste lanceolata longiuscula strictiuscula, mar- 
gine alis sensim convexis haud revolutis, longe sublaevi- 
pila, cellulis minutiuscule punctiformibus rotundatis basi 
quadratis diaphanis plus minus laxis, superiora latiora ma- 
gis curvata; perich. intima subvaginantia, basi tenuius 
areolata; theca in ped. pluries curvato flavido ovalis ma- 
xime costato- plicata lutea , operc. conico brevi obtuso pur- 
pureo, annulo lato triplici, dentibus late lanceolatis car- 
nosulis purpureis, dense leviter articulatis, rugulosis, apice 
irregulariter bifidis v. integris subcribrosis. 
Patria. Prom. b. spei, ad saxa montis leonis: Eck- 
lon et pr. Zwellendam. 
Fol. perig. generis longius acuminata basi laxe reti- 
culata, externa basi ventricoso- concava. — A Gr. tri- 
chophylla notis cursive impressis faeile distinguitur. Gr. 
pygmaeae foliis subaffinis. 
20. Gr. pygmaea C. Müll.; laxiuscule pulvinata hu- 
millima subsimplex v. semel dichotoma luteo - viridis pau- 
lisper canescens, basi nuda, apice foliis densissimis in- 
erassata; folia caulina erecta paullo patentia, brevia, 
stricta, latiuscule elliptica, in pilum longum sublaevem 
latiusculum producta, parum carinata, marginibus haud 
revolutis, sed alis sensim converis, cellulis incrassate 
quadratis, basi multo laxioribus pellucidis hexagonis; pe- 
rich. intima apice magis acuminata; theca in ped. brevis- 
simo semel decurvato ovalis, Jaeviter plicata, pallide fusca, 
operc. conico acuto brevi purpureo, annulo lato, dentibus 
brevibus late lanceolatis, inferne purpureis dense articu- 
50 * 
