740 FiLiGEs Cysfopteris, 



nervo adnatum versus margines et apicem lobuli liberum tandem 

 corrugatiim et evanescens. Petiolus rhizomati continuus. Frons 

 decomposita. 



1. C. fragilis (L. Sp. 1553 sub Poli^podio) rhizomate horizonlali 

 brevi apice paleaceo, frondibus petiolis gracilibus lamina. brevioribus 

 sulTullis ambitu oblongo-lanceolatis 2-3-pinnatisectis segmenlis infe- 

 rioribus abbreviatis magis dissitis, pinnulis ovatis basi decurrentibus 

 pintiatiHdis vei sectis. lobulis ovatis vel lanceolatis denticnlatis vet 

 retusis. soris utrinque ad costam uriiseriatis '^ . C. fragilis Bernh. I. 

 cit. — Speciespinnularum et loborum divisione et forma, summopere 

 variabilis et cujus formcG innumerse altera in alteram transeunteij 

 magis notabiles sunt. 



a. genuina. — Pinnulie piiinalilid;e lobulis ovatis vel obovatis inte- 

 gris vel denticulatis. — Cyst. dentatu Sm. — 6\ Caucasica G. A. 

 Mey. in Hoh. exs. — Ic. Kngl. bot. tab. 1587. 



Hab. ad rupes umbrosas subalpinas et alpinas, Peloponnesus in raonte 

 Malevo (Sart !), Macedouia in Athone (Sibth.), Lydia in Tmola (Boiss!), 

 Taurus Cilicicus (Bal!), Annenia circa Erzeruin (Calv!), Pontus Lazicus ad. 

 Djimil (Bal !), Cyprus (Ky!), Tauria, Caucasus et Transcaucasia (Ledeb. 

 Hoh! Szov !), Persia borealis (Ky!), A%hania (Aitch!). 



/3. tenuisec/a. — Pinnulae profundius et tenuius sectffi lobulis 

 angustioribus oblongis vel liticaribus truncatis vel retusis interdum 

 SGrrn\ai\s. — Aspidium alpinum W, — Asp. regium Sw. — Cystopte- 

 ris cdpina Link. — C. regia Presl — Aspidium Taygetense Bory FI. 

 Pelop. p. 67. 



Hab. in rupestribus umijrosis alpinis forma pra^cedente fere vulgatiory 

 omnia cacumina excelsiora Peloponnesi et (jftecire continentalis (Bory! 

 Hel(lrl), Olympus Bithynus (Auch !), Creta (Heldr!), Armenia Kurdica (Ky !)^ 

 Libanus (Ehr! Boiss !), Cataonia (Haussk!), Persia borealis in monte Elbrus 

 (K\. G79!)et anstralis in montibus Nur et Kellal us^pie ad 130UO' (Haussk!)^ 

 Alfghania (GrifT !). 



kr. Geogr. Europa omnis, Turkestania, Sibiria, Africa borealis, insulce Ca- 

 narienses, America borealis et australis, Australia. 



ORl). CXLV. EQUlSETACEvf:. 



•(D. C. Fl. Fr. 2, p. 580). 



Caules e rhizomale sublerraneo articulato repente erecfi siinplices 

 vel verticillatim raniosi ad articulos vagina deiitata instrucli ramis 

 et ramulis verticillatis. Amentum torminale squamis vcrlicillatiS' 

 constans quarum unaquaque pelfata aiigulata stipitata subtus mar- 

 gine 4-7 sporangia circulariter disposila fert. Sporangia membraiia- 

 cea longitudinaliter lissa.Sporiunumerosissimie globosje appeiidicibus 



