616 



PILICES. 



to a passage into Lindsaea, Adiantum, and Pteris. It is curious 

 that in such cases the habits approach also to these, while in 

 others which have the usual venation the habit is that of 

 Aspidium etc. 



Davallia sp. — Fronde decomposita, 4. 5. pedali, stipito 

 pubescente, Pinnulis, profunde pinnatifidis obliquis laciniis 

 oblongis truncatis lateri superiore, inferiori minoribus rotun- 

 datisque subirlegis. 



Venatio. — venae secondaries cuique laciniae venulam tertiam 

 oblique dant, hee quartariae margines versus currentes emit- 

 tunt, saepius infra medium bifurcae, rarius simplices, omnibus 

 intra marginem clavatim desinentibus. 



Sori paucissimi utrinque pinnula biseriati venulam quar- 

 tariam si simplex est vel ejus ramulum internum quoad se- 

 condariam, (primariamve laciniai,) insidentes rotundato intro- 

 marginales. 



Indusium ex apice venulae unicae semper oritur membrana- 

 ceum, nec deflexum, lateribus centro allius insertis, adeo ut 

 cum fronde cupuli modum format. 



In sylvis inter Kujoo Soorallque. January, 24, 1836. No 

 sori are ever developed inside with regard to the rachis, two 

 are occasionally developed along the outside. It, Ass. 326. 



Davallice sp. — Stipitibus sub 4 gonis superne sulcatis, his- 

 pidis praesertim bases versus, fronde sub 3 pedali, 1 pinnata. 

 Pinnis alternantibus brevissime petiolatis, cuneato-linearibus, 

 basi supraque sub auriculatis, acuminatis, crenatis serratisque 

 utrinque secus venas parce pubescentibus. 



Venatio, primaria cuj usque pinnae ad apicem flexiuscula cur- 

 rit, introque cum clavata desinet, cursu emittens venas tertia- 

 rias quoad stipitem, harum omnes duabus basilaribus tantum 

 exceptis, medium versus furcatae sunt, furcis intra marginem 

 clavate desinentibus ramo interno tantum vel duobus soriferis. 

 Basilares simpliciter ramosae, sunt soros tantum in partem 

 externam quoad stipitem gerentes. 



