Contrihutio ad floram cryptogan^am Asiœ horeali-orientalis. 257 



scitur foliis sursum plus miniisve hamato-cuivatis, cellulis alaribus nuUis, theca plicata, 

 operculo liumili etc. 



72. Pylaiea obtusa ii. sp. Lindb. 



Autoica, robusta, vix radiculosa, dense pinnata; foliis sursum valde cur- 

 vatis, angulis excavatis, ubique remote serrulatis, cellulis angularibus paucis- 

 simis, quadratis, ceteris sat breviter prosenchymaticis, serpentinulis ; bracteis 

 perichsetii loiigis; theca ovato-oblonga, raro indistincte asymmetrica; annule 

 nulle; exostomii dentibus extus non trabeculatis, endostomio bene evoluto, li- 

 bère, processubus in carina perfecte dissolutis in crura duo plana, omnino 

 inter se libéra et linearia, ciliis interdmu sat lengis; opercule luuniliter co- 

 nice, ebtuso, haud rostellate. 



Hab. ad Tunai. fertilis, medie Sept. 1860, Schmidt. 



CœspUes densiusculi, humiles, iutiicati, viridulo-lutei, nitidi. Planta robusta, 2 — 3 cm. 

 longa et 1,25 mm. crassa, haud vel vix radiculosa, sed paraphylla parcissima, filiformia — 

 palmata gerens, dense pinnata, ramis, prassertim in sicco statu, arcuato-incurvatis. Folia 

 densissima, patentia, sursum, prœsertim sicca, valde curvata, basi vix decurrentia, angulis 

 distincte excavata, late et profunde canaliculata, ovato-lanceolata, sensim longe acutissima, 

 superne inconspicue flexuosula et torquatula, margine ubique piano et remote serrulato, vulgo 

 enervia, interdum nervös binos brevissimos vel raro siugulum et sat longum ostendentia; 

 cellulœ angulares paucissimœ, quadratœ, ceterse breviuscule prosenchymaticœ et serpeutinute, 

 parum incrassatse et laivissimaB. Perichœtia in caule sat pauca, pro more longa, baud radi- 

 cantia. Bracteœ eorum longœ, fragilissimie, erectaî, strictœ, longe vaginantes, haud plicatse, 

 elongate ovato-oblongaa, longe, flexuosule et acutissime acuminat», énerves, margine piano 

 et remote serrulato, cellulis inf'erioribus rectangularibus, ceteris rbombeo-prosenchymaticis, 

 vix serpentinis. Sela 12 mm. alta, stricta, sat gracilis, lœvissima, purpureo-brunnea, ad 

 medium sinistrorsum, superne dextrorsum torta. Theca 1,75 mm. alta et 0,75 mm. crassa, 

 erecta, raro indistincte asymmetrica, ovato-oblonga, lœvissima, subopaca, pallido-brunnea, ore 

 brunneo, cellulis irregulariter quadratis — rectangularibus, sat incrassatis, stomatibus basi- 

 laribus minutis, sat paucis, superficialibus. Annulas nuUus, sed margo oris thecalis fragmen- 

 tarie deciduus. Peristomium sat altum, pallidum; exostomii sedecim dentés erecti, dolabri- 

 formes, acutissime acuminati, haud limbati, extus haud, intus tamen densiuscule et humiliter 

 trabeculati; endoslomium bene evolutum et ex exostomio perfecte liberum, vix articulatum, 

 ob densissimas verruculas opacum, membrana basilaris altissima, medium dentium paullo 

 superans, superne carinata, processus altitudine exostomii, in carina dissolut! in duo crura 

 plana, omnino inter se libéra et linearia, cilia varia, interdum bina et sat longa, paginse 

 interiori dentium adpressa. Spori magni, viridulo-brunnei, densissime humiliter verruculosi. 

 Operculum humiliter conicum, obtusum, haud rostellatum. Calyptra magna, cucuUata, stra- 

 minea, nitida, Isevissima. — Androecia perichœtiis interposita, sat copiosa. 'Bracteœ eoruni 

 late ovales, brevius et late acuminatse, intégras, valde concavae, énerves, antheridia 5 — 8 et 

 paraphyses, numerosiores, longiores et filiformes, occultantes. 



Pylaiea inlricata borcali-americana est planta triplo vel duplo major, magis intricata, 

 caulc nuUa paraphylla gerente, subtus radiculoso, minus rogulariter pinuato, foliis magis in- 



33 



