Fig.1.7. Psilotum nudum. A-D, successive stages in the development of sporogium; E, Trilocular synangium.

Fig.1.7. Psilotum nudum. A-D, successive stages in the development of sporogium; E, Trilocular synangium.

Fig.1.7. Psilotum nudum. A-D, successive stages in the development of sporogium; E, Trilocular synangium.

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