. Maryland geological survey. PTERIDOPHYTA. PLATE XLI. PAGE Figs. 1, 2. Selaginella marylandica Fontaine 307 1. Specimen from Vinegar Hill, Maryland (after Fontaine). 2. Part of same. X 3. Figs. 3-6. Equisetum Burchakdti (Dunker) Brongniart 310 3. Rhizome with tubers, New Reservoir, D. C. (after Fontaine). 4. Branching specimen, Dutch Gap, Virgina (after Fontaine). 5. 6. Diagrammatical sketch of sheaths of same (after Fontaine). Figs. 7, 8. Equisetum Lyelli Mantell 311 7. Specimen from Fredericksburg, Virginia (after Fontaine). 8. Same showing sheath (after Fontaine). 540 MARYLAND GEOLOGICAL S
. Maryland geological survey. PTERIDOPHYTA. PLATE XLI. PAGE Figs. 1, 2. Selaginella marylandica Fontaine 307 1. Specimen from Vinegar Hill, Maryland (after Fontaine). 2. Part of same. X 3. Figs. 3-6. Equisetum Burchakdti (Dunker) Brongniart 310 3. Rhizome with tubers, New Reservoir, D. C. (after Fontaine). 4. Branching specimen, Dutch Gap, Virgina (after Fontaine). 5. 6. Diagrammatical sketch of sheaths of same (after Fontaine). Figs. 7, 8. Equisetum Lyelli Mantell 311 7. Specimen from Fredericksburg, Virginia (after Fontaine). 8. Same showing sheath (after Fontaine). 540 MARYLAND GEOLOGICAL SURVEY. LOWER CRETACEOUS, PLATE PTERIDOrHYTA. PLATE XLII. PAGE Cycadeoidea MARYLAiNDicA (Fontaine) Cap. & Solms 320 View of tlie liistoric trunlt discovered by Philip Tyson about 1860. Tlieprobable locality at Spring Gardens, Baltimore County, is shownon Plate IV, Fig. 2. 541 MARYLAND GEOLOGICAL SURVEY. LOWER CRETACEOUS, PLATE XLII.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectpaleont, bookyear1901
