18 



I. Vendroceros Nees ab Es. (Synops. Hepat. p. 579 — 

 582. reforni.) 



Frons tenuis ex unico cellularun) strato con- 

 stans, margine adscendente crispa vel sinuata, nervo 

 valido (6 — 10 cellulas alto, sectione transversa for- 

 ma semilunari) perenrsa, versus margines plus mi- 

 nusve lacunosa, id est, inter cellulas singulas in- 

 terstitia triangularia vel quadrata vere perforata 

 monstrans, in una specie (in Dettdrocerote javani- 

 co~) marginem reticulato-perforatuni in moduni lin- 

 tei artificiose contexti producens. Ramificatio pin- 

 natifido-dichotoma. 



Glotiuli nigro-virides juxta nervum in facie veu- 

 trali prominentes, externe unico cellularum Strato 

 muniti , granulis glaucis utriculoque multieipite re- 

 pleti. 



Inflorescentia mascula in eadem ac feminea plan- 

 ta, dorsalis, biserialis, nervum utriusecus comitans, 

 papulosa. Papulae illae — loco folii perigouialis — 

 poro lato irregulari vertice rumpentes autheras ova- 

 les pedicellatas solitarias C?) contiuent. 



Inflorescentia feminea dorsalis in nervo frondis. 

 Status ejus primarius incognitus. Involucrum, cu- 

 jus paries trifario cellularum strato componitur , in 

 nervo e frondis superficie adscendens, primum apice 

 clausum , cellulis nonnullis luxuriantibus tubercu- 

 loso -hispidulum, capsulam juniorem obvelans ; dein 

 tubulosum, per apicem ruptum maturam capsulae 

 partem brevius longiusve protrudi sinit. Capsula 

 usque ad basin cellulis quasi praestitutis partibilis, 

 vel bivalvis , plerumque ad medium , vel qua parte 

 exit, tau tum hians , interdum dehiscentia unilate- 

 rali apice bifido douata ; externe stomatiis ornata, 

 persistens , pedicello brevissimo nervo innato fulta, 

 quadrifario cellularum strato (nempe externo colo- 

 rato et cuticulä liyalinä obdueto, et terms hyalinis 

 interioribus parenchymatös) quam maxime com- 

 posita. Columella centralis , demum apice libera', 

 nudo oculo capilliformis, 3—10 cellulas crassa, 5 — 

 10 cellulas lata, ad verticem adscendens. Elateres 

 ad speciem simplices , sed revera articulati, filum e 

 4 — 6 cellulis elongatis sistentes, iibra spirali unica 

 agglutinatioiie continua per articulos percursum. Se- 

 mina magna subeubica, superficie granulata, intus 

 granulis viridibus depieta. 



Vita arborea in ramis vel in muscis. 



Huc pertinent: 



1. D. crispatus (Syn. Hep. p. 579. n. 1.). Frons 



margine parce lacunosa. 



2. D. adglutinatus (Syn. Hep. p. 581. n. 3.). 



3. D. lacerus (Syn. Hep. p. 581. n. 4.). 



4. D. crispus (Syn. Hep. p. 581. n. 50. 



5. J>. brasiliensis (Syn. Hep. p. 581. n. 6.). 



6. D. Breutelii (Syn. Hep. p. 581. n. 7.). 



7. V. cichoraceus (Anthoceros cichoraceus Mont. in 



Syn. Hep. p. 590. n. ?20). 



8. V. crassinervis (Anthoceros crassinervis N. ab 



Es. in Syn. Hep. p. 588. n. 160. 



9. D. javanicus (Syn. Hep. p. 582. n. 8.). 



Adnotat. Pars capsulae non partita minus bene 

 in Synopsi nostra Hepaticarum „pedunculus" (vel 

 p. 582. n. 8. in textu „pedicellus") nominatur; trans- 

 versa enim Sectio liujus „pedunculi" versus basin 

 involucri monstrat capsulae parietem coloratum cum 

 interioribus stratis, binas series seminum et mediam 

 columellam ; — quae res a „pedunculi" vel „pedi- 

 celli" conditione toto coelo abhorrent. „Pedunculo 

 incluso" Synops. Hep. est: „Capsula a vertice ul- 

 tra involucri os discessit"; „peduneulo exserto" est: 

 Capsula vertice tautum discessit, et valvulae adhuc 

 connatae ad speciem pedunculi ex involucro emer- 

 gunt. — 



II. Anthoceros (Syn. Hep. p. 583—590 et p. 791. — 



Reformat.). 



Schacht, Beitrag zur Entwickelungsgescliicltte der 

 Frucht und Spore von Anthoceros laevis in 

 Mohl und Schlechten«!. Botan. Zeitg. 1850. p. 



457 sqq. tab. VI. 

 Hofmeister, Vergleichende Untersuchungen der 

 Keimung, Entwickelung und Fruchtbildung hö- 

 herer Cryptogamen. 1851. (.Anthoceros laevis 

 et tuberculatus. p. 1—10. Tab. I — III. 

 Frons continua (uec lacunosa ac in Dendroce- 

 rote) e plurib'us cellularum stratis (6 et ultra) con- 

 flata , sine nervo conspicuo , magis minusve crassa, 

 in nonnullis costain quasi effnsam monstrans , in- 

 terdum vesiculoso-eava orbiculari-radiata, lacera et 

 irregularis. 



Granula nigro-viridia ovalia in froude dispersa, 

 pro gemmis ab auetoribus habita , inveniuntur. 



Inflorescentia mascula dorsalis in eadem ac fe- 

 minea planta, verrueulosa; anthera singula (?) vel 

 complures (ad 10) in autris pedicellatae, in frondis 

 lacinulis vel supra totam frondem dispersae. 



Inflorescentia feminea aeque dorsalis. Initium 

 archegonii et incrementum fruetus recentiori tem- 

 pore (1850 et 1851) Schacht et Hofmeister ab aliis 

 Hepaticis oniniuo recedens descripseruut. In fron- 

 dis canali cellularum resorptione formato oritur cel- 

 lula libera centralis (Hofmeister 1. c. tab. I. f. 10. 

 a. b; f. 33-40; Schacht 1. c. t. VI. fg. 1—5.). In- 

 volucrum e frondis superficie circa fruetum nascen- 

 tem elevatum, apice conglutinato a fruetu transe- 

 unte perforatur et partem superficiei interdum amii- 



