- 897 - 



Ord. CXXX^Ml. LYc.oponi\r,E\E DC. Sparangia solilaria axillaria in foliiscauliiiis 

 ■sparsa, vel in ramonim apicibus spicalim approximala , modo unifonnia, modo 

 (lifTormia, in valvuias iieniper deliiscenlia: uniformia rcnirorma vel suhglobosa sporis 

 numcrosissimis laeribus vel papillosis quaternalim in corpuscula Irigona cohcrenlia : 

 diHbrmia, alia uniformibus similia al muriculala, alia sporas 3-4 majores inclu- 

 denlia, slriis Iribus apicc coniiivenlibus, nolata. Planlae ul plurimum vivaces super 

 cortices arborum vel ad terram muscosam.- caulis aternalim ramosus, basi decuni- 

 bens in rhizoma super terram vel sub lerra prolensus: folia spiralia , inferiont 

 radiculas emillenlia, quae spiculas comitanlur in braeteas mutata. 



l.yropodUim oU2. Selafjinclla 00,'}. 



Ordo CXXXVllI. Felices L. Sporangia pedicellala vel sessilia regiilariler vel 

 irregulariler dehiscenlia a^mlo (gyra, gijroma) elaslice complelo vei incomplelo 

 quandoque dcficienle donata: coacervalio sporangiorum, sori, seriata vel inordinala 

 in facie iiiferiore frondium, vel in earum apicibus mclamorphosatis, spiculas pe- 

 niculasve rcfcrenlibus: sori sub epidermide crumpunt et modo indusiaii scu epi- 

 dermide varimode comitali, modo epidermide decidua midi : sporae in quo([ue 

 sporangio numerosae nudae. Planlae sepius vivaces rhizomate hori/ontali (in 

 exoticis slipite): folia (frondes) sparsa vcl coadunala , foliatione paucis exceptis 

 circinali. 



Trib. 1." Ophioglosseae 11. Brow. Sporangia scssilia libera vel connala in 

 apice frondis integra vel ramosa : sporangia unilocalaria anulo deslituta, valvis 

 dehiscentia. Frondes duo dissiiniles, altera sporangifera: foliatio minime circinaiis. 



Ophioglossum 334. Botrychium 535. 



Trib. 2." Osmundaceae R. Brow. Sporangia libera pedicellata membranacea 

 reticulata, anub deslituta, longitudinaliter in valvas binas dehiscentia, in apice 

 ramoso frondium. 



0?>munda 536. 



Trib. 3^* Polypodiaceae R. Brow. Sporangia sessilia vel pedicellata , aimlo 

 elastico einta , transversaliter et irregulariter dehiscentia , in facie iiiferiore 

 frondium. 



Subt. 1." Polypodiaceae nudae Koch. Indusio prorsus destilulae. 



Ceterach 537. Pohjpodiuin 538. Grammitis 539. 



