LTCOPODE^. CXXVU. 



* * Spore-cases two-lobed, the lobes one-celled. 



179. TMESIPTERIS, JBemhardi, Schrad. Jown. 1800, 



ii. 131, t. 2, f. 5. 



TuESEOPlEBis, Kwnze; Ltcopodu sp., Auct, ; PslLOTl sp., B. Brown. 



Spore-cases (antheridia) two-lobed, the lobes divaricate sub- 

 acute, two-valved, opening by a Tertical cleft ; coriaceous, sessile 

 in a fork of tbe leaf. Spores oblong, with a single stria. 



Stems leafy angulate. Leaves vertical, sessile, decurrent, cori- 

 aceous, the fertile ones didymous or dicbotomous, stipitate. 



Ex. ; T. tannensis, B&mh, 



* * * Spore-cases three-celled. 



180. PSILOTTJM, SwoHi, Sckrad. Joum. 1800, ii. 8, 109. 



Bebkhaebza, WiUdenov) ; HoEFMAKlOA, WHldenoWi Ipphia, JToronAa ; 

 Gaesattltia, Commerson MS.; BucHOSiA, Commersmi MS.} Teisxeca, 

 Falkot de Beawvais; Ltcopodii sp., Auct. 



Spore-cases (antheridia) three-celled, three-valved, coriaceous, 

 scattered; sessile in the axils of the minute braot-like leaves. 

 Spores oval, with a single stria. 



Stems compressed or angular, diohotomously forked. Leaves 

 none, or reduced to minute bractiform subulate scales, in the 

 axils of which are produced the scattered fructifications. 



Ex. ; P. triquetrum, Sw. \ P. complanatum, 8w. 



(b) Fructifications comprising loth antheridia and oophoridia. 



181. SEL AGINELL A, Palisot de Beamais, Frod. Aetheog. 



101 (extens.) ; Spring, Mon, Lycopod. ii. 52. 



STACHxaTfTAiTDEiTrM, TaMsot de Beatvoais ; Diplostachtttm, Palisot de 

 Beauvaig; GrTMNOGTiftnr, Falisot de Beauvais; Mibmau, Adcmaon; 

 AcopoDiuM, Necker; Ltcopodii sp., Aihct. 



Spore-cases of two kiads : (1) antheridia, one-celled, two- 

 viilved, opening at the apex, erect, oblong or globose, containing 

 numerous small spores ; (2) oophoridia, one-celled, two to four 



