72 



LORKNSERIA. — Acrostichi spec. Lin. — Onoclcae spec. Miehx. — Woodwardiae spec. 

 Smith,Pursh. — Frondes heteromorphae. Sterilis: venae inlemae ramosissimae venulisquecon- 

 formihus in maculas hexagonoideas subaequales pluri- (quin([ue-) seriales anastomosantes. Ferti- 

 lis: venae internae venulisque eonformibus in unieam seriem macularum heniihexagonoida- 

 rum anastomosantes. Sori venis macularum inserli, immersi, costae paralleli, lineares, al- 

 terni. Indusium coriaceum, lineare, fornicalum, sorum involvens. 



Rhizoma rcpens. Frondes heteromorphae, stipitatac : sterilis herbacea, transparens, 

 pinnata apicem versus pinnatifida, pinnis laciniisque aut ublongo-lanceolatis aut pinnatifidis, 

 venis vcnulisquc tenuibus; fertilis rigidula, eoriacea, pinnata , pinnis aut linearibus denticu- 

 latis aut pinnatifidis, venis crassioribus in maculas costales magnas anastomosantihus. Fas- 

 ciculi vasoium stipitis sterilis L. areolatac tres teretes tenues, stipitis fcrtilis unicus teres 

 ccntralis tcnuis strato nigro vestitus, in altcra specie ignoti. Racliis costaeque subtus pa- 

 leacea. Sori cavitatibus respondentibus et in supcriori pagina frondis prominulis immersi, 

 costa pinnarum laciniaruinque ad sori spatium cffoi niauduni contribuente indcque elevata et 

 aeute marginata. Indusium fuscum, rigidum. Receptaculum lineare, convexum. Species 

 duae, boreali- americanae. 



Diffcrt a Woodwardia frondibus hcteromorphis , venis venulisque frondis sterilis in 

 series plures macularnm hexagonoidearum subacqualiuin oblongarum, frondis fertilis in uni- 

 cam seriem macularum costaliuin magnarum anastoinosantibus, soris longioribus. — Genus 

 dicatum in honorem Gustavi Lorinser, Med. D., qui dissertationem egregiam sistens conspe- 

 ctum Stachyopteridum in Rohcmia sponte nasccntium scripsit. 



L. akkoi.ata. — Lonchitis niajor virginiana folio vario, aliis Polvpodii in modum con- 

 junclis Moris. hist. III. 569. scct. 14. t. 2. f. 24. — Filix floridana praclongis ct angustis 

 pinnulis ad oras seminibus fnnbriatis, pediculo splendcntc nigrp Pluek. phvtogr. t. 399. 

 f. 1 (frons fertilis). — Acrosliclium arcolatum Lin. spec. 1526. Gron. virg. 124. — Osmunda 

 caroliniana Walt. car. 257. — Onoclea nodulosa Michx. ainer. II. 272. Swartz syn. 111. — 

 Woodwardia angusiifolia Sniith act. taur. V. 4ll.Swartz syn. 116. Pursli fl. bor. amcr. (!63. 

 Spreng. syst. IV. 94. Presl tcnt. pterid. 101. — Wooduardia floridana Schk. fil. 103. t. lti. 

 — VVoodwardia onocleoides Willd. spec. V. 416. Desv. in ann. soc. lin. par. VI. 28o. Link. 

 fil. hort. ber. 81. 



Habitat in Juniperetis ct Taxodietis umbrosis paludosis Americae borealis.- Pennsvlva- 

 niae, Virginiae et Carolinae (Michaux), in INovo Eboraco (A. Gray) , a (Novo-Eboraco usque 

 ad Floridam (Pursh). 



L. thklyptkkoides. — Woodwardia thelypteroides Pursh fl. bor. amer. 663. Spreng. 

 syst. IV. 94. Presl tent. pterid. 101. 



Habitat in Carolina australi (Pursh). 



Aspi.F.MVJM lkpturls; frondc coriacea lanceolata glaberrima pinnata , pinnis petiola- 

 tis oblongo-lanceolatis angustato-aeuminatis incisis basi cuneato-aculissimis, acumine remote 

 serrato, ineisuris apice truncato inaequaliter angusteque dentatis, stipite rachique canalicu- 



