. Contributions from the Botanical Laboratory, vol. 12. Botany; Botany. n American Fern Journal '» V, â ( Volume 25, Plate 8. »l^ -^ 1 ^ r ' vt mL^o, ^ â¢Â« Spores of Northeastern Ferns. .4r> â¦-â¢4-rt Spores of Northeastern Ferns 85 cariaefolium A. Br.; Fig. 4. B. virginianum (L.) Sw.; Fig. 5. B. silaifolium Presi; Fig. 6. B. simpieo; Hitchc; Fig. 7. Osmt^nda regalis L. var. spectahUis (Willd.) A. Gray; Fig. 8. 0. cmna- momea L.; Fig. 9. Schizaea pusUla Pursh; Fig. 10. Lygodium palmatum (Bernh.) Sw. Plate 6. Fig. 11. Pellaea atropurpurea (L.) Link.; Fig. 12. Cheilanthes lanosa (Mx.) Watt
. Contributions from the Botanical Laboratory, vol. 12. Botany; Botany. n American Fern Journal '» V, â ( Volume 25, Plate 8. »l^ -^ 1 ^ r ' vt mL^o, ^ â¢Â« Spores of Northeastern Ferns. .4r> â¦-â¢4-rt Spores of Northeastern Ferns 85 cariaefolium A. Br.; Fig. 4. B. virginianum (L.) Sw.; Fig. 5. B. silaifolium Presi; Fig. 6. B. simpieo; Hitchc; Fig. 7. Osmt^nda regalis L. var. spectahUis (Willd.) A. Gray; Fig. 8. 0. cmna- momea L.; Fig. 9. Schizaea pusUla Pursh; Fig. 10. Lygodium palmatum (Bernh.) Sw. Plate 6. Fig. 11. Pellaea atropurpurea (L.) Link.; Fig. 12. Cheilanthes lanosa (Mx.) Watt; Fig. 13. Cryptogramma Stelleri (S. G. Gmel.) Prantl; Fig. 14. Pteridium latiusculum (Desv.) Hieron.; Fig. 15. Polypodium virginianum L.; Fig. 16. Cystop- teris hulhifera (L.) Bernh.; Fig. 17. Adiantum pedatum L.; Fig. 18. Dennstaedtia punciilohula (Mx.) Moore. Plate 7. Fig. 19. Dryopteris crisiata (L.) A. Gray; Fig. 20. P. Goldiana (Hook.) A. Gray; Fig. 21. P. spinulosa (Muell.) O. Ktze.; Fig. 22. P. marginalis (L.) A. Gray; Fig. 23. D. Thelyp- teris (L.) A. Gray; Fig. 24. D. novehoracensis (I>.) A. Gray; Fig. 25. D. Linnaeana C. Ghr.; Fig. 26. D. Phegopteris (L.) C. Chr.; Fig. 27. Dryopteris hexagonoptera (Mx.) C. Chr.; Fig. 28. Athy- rium acrostichoides (Sw.) Diels; Fig. 29. A. asplenioides (Mx.) Desv.; Fig. 30. A. angustum (Willd.) Presl; Fig. 31. Polystichum acrostichoides (Mx.) Schott. Plate Fig. 32. Camptosorus rhizophyllus (L.) Link; Fig. 33. Athyrium pycnooarpon (Spreng.) Tidestrom; Fig. 34. Asplenium platyneuron (L.) Oakes; Fig. 35. A. Ruta-muraria L.; Fig. 36. Pteretis nodulosa (Mx.) Nieuwl.; Fig. 37. Woodsia ilvensis (L.) R. Br.; Fig. 38. W, ohtusa (Spreng.) Torr.; Fig. 39. W, glabella R. Br.; Fig. 40. Woodwardia areolata (L.) J. E. Sm.; Fig. 41. W. virginica (L.) J. E. Sm. Botanical Laboratory, University of Pennsylvania, December, 1934. mmmmmmmmmim ⦠V t^viueuce .m^ ueeu preseikea to snow that the particles in Ilevea latex pos
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