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Appendices & Glossary - Botanical Research Institute of Texas

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APPENDIX TWO<br />

PHYLOGENY/CLASSIFICATION OF THE PTERIDOPHYTE,<br />

GYMNOSPERM, AND MONOCOT FAMILIES OF EAST<br />

TEXAS, BASED ON CRONQUIST (1981, 1988) AND OTHERS<br />

This phylogeny/classification is modified from those <strong>of</strong> Cronquist (1981, 1988), Lellinger (1985), and<br />

Hickman (1993). The synopses <strong>of</strong> subclasses are from Hickman (1993) and Woodland (1997). A classification<br />

system including all families <strong>of</strong> vascular plants can be found in Mabberley (1987, 1997). Figure<br />

173 is a diagram <strong>of</strong> relationships <strong>of</strong> subclasses <strong>of</strong> flowering plants as envisioned by Cronquist (1988).<br />

Figure 174 (from Zanis et al. 2003) in Appendix 3 is a more recent view <strong>of</strong> flowering plant phylogeny<br />

incorporating molecular data.<br />

FERNS AND<br />

SIMILAR PLANTS GYMNOSPERMS ANGIOSPERMS<br />

SPORE-BEARING<br />

Division PSILOPHYTA<br />

Order Psilotales<br />

Psilotaceae<br />

Division LYCOPODIOPHYTA<br />

Order Lycopodiales<br />

Lycopodiaceae<br />

Order Selaginellales<br />

Selaginellaceae<br />

Order Isoetales<br />

Isoetaceae<br />

Division EQUISETOPHYTA<br />

Order Equisetales<br />

Equisetaceae<br />

Division POLYPODIOPHYTA<br />

SUBCLASS OPHIOGLOSSIDAE<br />

Ophioglossaceae<br />

SUBCLASS OSMUNDIDAE<br />

Osmundaceae<br />

SUBCLASS SCHIZAEIDAE<br />

Anemiaceae<br />

Lygodiaceae<br />

Pteridaceae<br />

SUBCLASS GLEICHENIIDAE<br />

Polypodiaceae<br />

SUBCLASS HYMENOPHYLLIDAE<br />

Dennstaedtiaceae<br />

Thelypteridaceae<br />

Aspleniaceae<br />

Dryopteridaceae<br />

Blechnaceae<br />

SUBCLASS MARSILEIDAE<br />

Marsiliaceae<br />

SUBCLASS SALVINIIDAE<br />

Azollaceae<br />

Salviniaceae<br />

“NAKED SEEDS,”<br />

SEEDS NOT ENCLOSED IN AN OVARY;<br />

USUALLY WITH CONES<br />

Division GNETOPHYTA<br />

Order Ephedrales<br />

Ephedraceae<br />

Division PINOPHYTA<br />

(CONIFEROPHYTA)<br />

Order Coniferales<br />

Cupressaceae<br />

Pinaceae<br />

“VESSEL SEEDS,”<br />

SEEDS ENCLOSED IN AN OVARY;<br />

FLOWERS PRESENT<br />

Division MAGNOLIOPHYTA<br />

Class MONOCOTYLEDONAE<br />

(LILIOPSI DA)<br />

SUBCLASS ALISMATIDAE<br />

Pistils simple; herbs, aquatic<br />

Order Alismatales<br />

Limnocharitaceae<br />

Alismataceae<br />

Order Hydrocharitales<br />

Hydrocharitaceae<br />

Order Najadales<br />

Potamogetonaceae<br />

Ruppiaceae<br />

Zannichelliaceae<br />

SUBCLASS ARECIDAE<br />

Inflorescence <strong>of</strong>ten <strong>of</strong> many<br />

small flowers, enfolded or<br />

subtended by prominent<br />

bract(s); pistil usually compound;<br />

palm-like to minute<br />

aquatics<br />

Order Arecales<br />

Arecaceae (Palmae)<br />

Order Arales<br />

Acoraceae<br />

Araceae<br />

Lemnaceae

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