Haplomitrium. franz stephani. species hepaticarum. 41 



Es ist nicht zu erwarten, dass beide vorstehende Pflanzen je zu iden- 

 tificiren sein werden. 



HAPLOMITRIUM Nees. 



Hep. Eur. III, p. 111. 



Plantée foUosae, minores, carnosulse, virides, terricolae, e caudice ramoso 

 subterraneo arhizo erectse laxe csespitantes vel muscis consociatse. Caulis 

 Simplex vel ex axilla foliorum ramosus, sub flore innovatus, a dorso com- 

 pressus, in sectione itaque late ellipticus, superne incrassatus et subteres, 

 cellulis magnis (centralibus angustioribus et magis elongatis) formatus, 

 ceterum crassus et pallidus, nusquam rhiziferus. 



Folia inferiora oblique inserta, regulariter alternantia, concava, inte- 

 gerrima, postice breviter adnata, antice caulem latius incurrentia, imbri- 

 cata, incuba ; superiora multo majora, ex angusta basi conduplicatira 

 concava, transverse inserta, asymmetrica, margine postico substricto, 

 antico rotundato, vix longiora quam lata, apice normaliter triloba, iobo 

 mediane longiore acute vel obtuso. Cellulae foliorum magnse, crassse, basi 

 pluristratae, apice 27 {x, medianae 36X55 ji, basales 36X72 [x, haud in- 

 crassalse. Amphigastria regulariter cum foliis alternantia, magna, plano- 

 appressa, transverse inserla, foliis parum minora, simihter triloba. 



Inflorescentia monoica vel dioica. Pistüla in axillis foliorum solitaria, 

 nuda. Folia floralia (sub flore fecundato) bijuga, externa maxima condu- 

 plicatim concava, vaginatim opposita, erecta, apice acuta, margine irre- 

 gulariter angulata vel sublobata, magno amphigastrio libero consociata ; 

 intima ad 2 vel 4, multo breviora et minora, anguste ligulata, integerrima, 

 amphigastrio sequimagno anguste elliptico aucta. 



Perianthium nuUum. Calyptra libéra, maxima, anguste cylindrica, 

 crassa, basi paucis pistillis sterilibus cincta. Pedicellus capsulse ad 8 mm. 

 longus, compressus, magno bulbo obconico insertus. Capsula oblongo- 

 cylindrica, vix 2 mm. longa, acuta, rima 1 (vel 2) dehiscens; valvulse 

 connectivo subapicali interne cohserentes, unistratse, cellulis fibra annulari 

 longitudinaliter inserto incrassalis. Elateres (omnes decidui) ad 240 ^ 

 longi, tenuissimi, bispiri, spiris capillaceis. Sporœ parvse, 27 jjl, flavo- 

 virentes, minute papillatae. 



Antheridia in caule irregulariter distributa, ad 2 vel 3 aggregata vel 



395 



