Extrait du Bulletin de VHerbier Boissier, 2™ serie. — Tome VI (1906). 

 N° 5. 



37. Leioscyphus hexagonus (Nees) St. 

 Syn : Chilosc. hexagonus Nees Syn. Hep., p. 177. 



Slerilis magnus ferrugineus inferne fusco-brunneus corticolus. Caulis 

 ad 4 cm. longus arcle repens parum ramosus pro plantse magnitudine 

 tenuis. Folia caulina magna recle a caule patula adscendentia suborbicu- 

 lata concava margine anlico supra basin undulato. Cellnlse apicales 30 

 basales 30 X 60 p trigonis maximis nodulosis. Amphig. caulina utrinque 

 foliis coalila ambitu reniformia vel suborbiculata regulariter 5-6 angulata 

 angulis in spinam magnam patulam e lala basi acuminatam abeuntibus 

 sinubus aequimagnis late lunatis. 



Hab. Peruvia (in cortice peruviano) Sachapata (Lechler). 



Mit L. gibbosus zu vergleichen. 



38. L. Jackii St. Hedwigia 1892, p. 21. 



Dioicus robustus flaccidus rufo-badius dense caespilosus (pendulus?). 

 Caulis ad 12 cm. longus pro more simplex in planta fertili ssepe fascicu- 

 latim ramosus. Folia caulina majuscula opposila imbricata recte patula, 

 assurgenti-secunda parum concava marginibus arcte angusteque incurvis, 

 in plano reniformia, antice vix decurrentia basi postica ampliata subau- 

 riculala irregulariterque dentata et spinosa. Cellulx marginales 20 u. 

 subapicales 30 u. basales 30 X 40 jj. trigonis ubique raaximis subnodu- 

 losis contiguis vel confluentibus. Amphigastria caulina magna caule 

 multo latiora canaliculatim concava cauli subappressa ulrinque limbo 

 anguslo cilialo coalita, in plano optime hexagona angulis in spinam 

 longam stricte patulam abeuntibus. Folia ftoralia intima caulinis multo 

 majora valde concava perianthio arcte appressa marginibus anguste 

 incurvis. Amphigastriumflorale intimum obovatum truncatum paucidenli- 



