Zs. P. Komáromy szerk.: Studia Botanica Hungarica 13. 1979 (Budapest, 1979)

Szerdahelyi, Tibor: Rare ferns of Hungary, I. Botrychium virginianum (L.) Sw. var. europeum Angstr. in the Kiskunság National Park

Table 1. Development stages and phenophases in ferns Stage Phenophase Decimal number Anabiotic resting Spore, rhizome-bud 11 Juvenile vegetative Spore germinates, and the development of the prothallium sets out 21 Adult generative Sex organs develop in the prothallium, and fertilization takes place 31 Vegetative The first leaf of the sporophyton appears 22 Sporophyton has leaves which are developed but sterile 23 The first mature sori appear on the leaves 24 All the sori have developed on the leaves 25 Senile disorganized The sori are open, the lower leaves begin to dry away 41 All the leaves have dried off 42 Fig.l. Occurrence of Botrychium virginianum in the shallow dips of the surface