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Shougangia
Genus Shougangia De-M. Wang, H.-H. Xu, J.-Z. Xue, Q. Wang, L. Liu Ann. Bot. (Oxford), 115(7): 1135 [3]. 15 May 2015
- Name
- Shougangia
- Rank
- Genus
- Authors (Pub.)
- Wang D.-M.
Xu H.-H.
Xue J.-Z.
Wang Q.
Liu L.
- Publication
- Leaf evolution in early-diverging ferns: insights from a new fern-like plant from the Late Devonian of China [2015/5]
- Journal
- Annals of Botany
- Volume
- 115
- Issue
- 7
- Page number
- 1135 [3]
- Year
- 2015
- Parent Taxon
- [Class] Rhacophytopsida
- Fossil Status
- stems (with sporangia)
- Type
- Shougangia bella
- Diagnosis
- Adventitious roots occurring on only one side of horizontal portions of slender stem, with upright primary branches borne helically. Primary branches bearing secondary branches in irregular helices. Tertiary branches arranged alternately or (sub)oppositely, possessing basal fan-shaped pinnules in pairs, lateral alternate or subopposite Sphenopteris-like pinnules with three to six lobes, and either a terminal pinnule with two to four lobes or a terminal fertile organ. Fertile secondary branches also bearing basal fan-shaped pinnules. Pinnules laminate, with veins proximally parallel and then dichotomous. Fertile organs complex, three-dimensionally dichotomous up to ten times and terminating in numerous sporangia. Sporangia paired, elongate and distally tapered.
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