FE) 
u de 
en En 
Zur Bryo-Geographie des Russischen Reiches. ; 169 
a) Cellula superior lamellarum sectione transversali plus minusve 
distincte crenulata vel fere cordata et pariete superiore valde 
incrassato instructa. 
a) Folia superiora acute serrata, non fragilia. Cellula superior 
lamellarum sectione transversali glaberrima. 
1. Folia superiora humida supra vaginulam fere squarrosa, 
ad 15 mm longa; cellulae lamellarum in series 5—6. — 
Skiophiler Hygrophyt. P. commune. 
2. Folia superiora humida supra vaginulam deflexa vel 
arcuato-recurvata, 10—12 mm longa; cellulae lamel- 
larum in series 4—5. P. deflexifolium. 
3. Folia superiora humida supra vaginulam erecto-patentia 
vel paulo recurvata, 10—12 mm longa; cellulae lamel- 
larum in series 6—8. — Photophiler Mesophyt. 
P. perigoniale. 
ß) Folia superiora integra, supra vaginulam valde fragilia. 
Cellula superior lamellarum sectione transversali tenuissime 
papillosa. 
4. Folia superiora humida erecto-patentia, 10—12 mm 
longa; cellulae lamellarum in series 6—8 (10). — Photo- 
philer Hygrophyt. 4. P. fragilifolium. 
b) Cellula superior lamellarum sectione transversali truncata vel 
indistincte crenulata et pariete superiore tenui instructa. 
a) Folia superiora humida erecto-patentia vel fere squarrosa, 
ad 10 mm longa; cellulae lamellarum in series 6—8. — 
Photophiler Hygro- und Hydrophyt. 5. P. Swartzii. 
ß) Folia superiora humida patentia vel paulo arcuato-recur- 
vata 8—10 mm longa; cellulae lamellarum in series 
4—5 (6). — Skiophiler Mesophyt. 6. P. deeipiens. 
Sect. II. Obtuso-lamellata. 
B. Lamellae in costa foliorum ad margine superiore non canaliculatae; 
sectione transversali apice cum cellula rotundata vel ampullacea, 
nonnunquam truncata vel crenulata et pariete superiore vel valde 
incrassato vel tenui instructa. 
a) Cellula superior lamellarum sectione transversali ampullacea 
apice pariete valde incrassato levique instructa. 
a) Folia superiora integra et marginibus lateralibus late 
incurvatis jinstructa. 
1: er apice non piligera: 
. Cellulae lamellarum in series 7: folia superiora 
ad 10 mm longa, humida patula et paulo recurvata. 
Photophiler Xerophyt. 7. P. juniperinum. 
