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Hydropteris
Genus Hydropteris G.W. Rothwell, Stockey Amer. J. Bot., 81(4): 481. 15 Apr 1994
- Name
- Hydropteris
- Rank
- Genus
- Replaced Name
- [Genus] Hydropteridium
- Authors (Pub.)
- Rothwell G. W.
Stockey R. A.
- Publication
- The role of Hydropteris pinnata gen. et sp. nov. in reconstructing the cladistics of heterosporous ferns [1994/4]
- Journal
- American Journal of Botany
- Volume
- 81
- Issue
- 4
- Page number
- 481
- Year
- 1994
- Parent Taxon
- [Family] Hydropteridiaceae
- Fossil Status
- foliage (fertile)
- Type
- Hydropteris pinnata
- Diagnosis
- Ferns with rooted branching rhizomes bearing pinnate fronds and large multisoral, bisporangiate sporocarps at juncture of rhizome and frond bases. Pinnules narrowly attached with anastomosing venation. Sporocarps ellipsoidal with outer wall vascularized by main vein from which anastomosing laterals diverge. Megaspores spheroidal and trilete, en- closed in filamentous perispore with numerous more-or- less distinct floats distally, and producing coiled glochidia in central and apical regions; assignable to Parazolla Hall when found dispersed. Microspores spheroidal and trilete with blechnoid type exine, embedded in lamellar peri- spore that forms aggregates of numerous massulae.
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