RETICULATE EVOLUTION IN THE APPALACHIAN ASPLENIUMS

[1] ALSTON AHG, 1940, LINN SOC LONDON P 2, P132

[2] BRAUN E. LUCY, 1939, AMER FERN JOUR, V29, P133, DOI 10.2307/1545406

[3] COPELAND EB, 1902, BOT GAZETTE, V34, P143

[4] COPELAND EB, 1947, GENERA FILICUM

[5] CRAW JOE R., 1932, BUTLER UNIV BOT STUDIES, V2, P151

[6] EATON DC, 1879, FERNS US

[7] GLEASON HA, 1952, NEW BRITTON BROWN IL, V1

[8] CYTOLOGY OF THE DRYOPTERIS-SPINULOSA COMPLEX IN EASTERN NORTH-AMERICA [J]. NATURE, 1953, 171 (4364) : 1116 - 1117

[9] Manton I., 1950, PROBLEMS CYTOLOGY EV

[10] MAXON WR, 1918, AM FERN J, V8, P1

[1] ALSTON AHG, 1940, LINN SOC LONDON P 2, P132

[2] BRAUN E. LUCY, 1939, AMER FERN JOUR, V29, P133, DOI 10.2307/1545406

[3] COPELAND EB, 1902, BOT GAZETTE, V34, P143

[4] COPELAND EB, 1947, GENERA FILICUM

[5] CRAW JOE R., 1932, BUTLER UNIV BOT STUDIES, V2, P151

[6] EATON DC, 1879, FERNS US

[7] GLEASON HA, 1952, NEW BRITTON BROWN IL, V1

[8] CYTOLOGY OF THE DRYOPTERIS-SPINULOSA COMPLEX IN EASTERN NORTH-AMERICA [J]. NATURE, 1953, 171 (4364) : 1116 - 1117

[9] Manton I., 1950, PROBLEMS CYTOLOGY EV

[10] MAXON WR, 1918, AM FERN J, V8, P1