PTILIDIEA. 335 
Subtribus IIIl.—PTILIDIE 2. 
Pitilidia Nees. Hep. Eur. I. 95; III. 99 (1833). Blepharoziece 
Lindberg Hep. in Hibernia lect. (1875). 
Plante pro more elatz, solum in Chetocolea pusille, ceespitosee, 
erectee, depressee penduleve; raro virentes, plerumque rufo-badiz 
flavideeve, alize roseze sanguineve. Caules validi, utplurimum 
e caudice repente, demum dissoluto, interdum flagellifero orti, vagi 
vel pinnati, interdum paraphylliis squamulosi; rami in plurimis 
omnes laterales, in paucis etiam postici. Radicelle vix ull nisi 
ad caudicem et flagella. Folia alterna, raro subopposita, in plerisque 
incuba vel transversa, in paucis succuba, plerumque magna, sat 
longa, 2-vel 4-fida, in aliis multipartita, semper fere (basi saltema) 
dentata vel ciliata, segmentis interdum capillaceo-ramosis, subcon- 
cava vel canaliculata, in Mastegophora autem et Lepidolena distiucte 
complicata ; in hac laciniz tam lobulorum quam foliolorum saccatze 
(ad Frullanice instar) seepe inveniuntur. Cellulw mediocres vel fere 
magne, raro parve, semper fere longiores quam late, minute scabree 
verruculoseve. oliola foliis subconformia, magis symmetrica 
tamen, equimagna vel parum minora. ores utriusque sexus vel 
in caule vel in ramis lateralibus (nunquam in posticis) terminales, 
omnium specierum (Anthelid unica paroica excepta) dioici. Bractece 
@ semper fere plurijuge, foliis magis fisse armateque, pro m. inter 
se subliberz foliisque sensim majores, intime autem aliarum 
specierum parve perianthio adnate. Prstillidia plura (16-60). 
Perianthia vel omnino nulla, vel cum bracteis intimis vestita et 
confusa, vel denique perfecte distincta et libera, subteretia vel 
plicato-carinata, carinis 3-10: quando rarissime ad 3 solis redactis, 
carina tertia postica. Calyptra pro m. parva, aut libera et pistil- 
lidiis sterilibus basi (vel sepe altius) obsita, aut involucro adheesa, 
apice ipso pistillidiifera. Capsula in pedicello breviusculo, raro 
elongato, vel subglobosa et rectivalvis, vel cylindracea et tortivalvis, 
valvulis haud raro fissis; 2—8-strata, strato intimo fibris semiannu- 
laribus persepe notato. lateres tenues bispiri, cito decidui, vel 
pauci basales longius persistentes. Spore minute globose. Andrecia 
terminalia brevispica; bractee 1—3-andree. 
This subtribe is only imperfectly represented by the genera and species 
of tropical America, the typical European genus, Ptilidiwm,* being 
* Ptilidium Nees. Hep. Eur. I. (1833)=Blepharozia Dum. Recueil (1835 : 
previously proposed by Dumortier merely as a subgenus of Jungermania). 
