| Megaspores
Megaspores, also called macrospores, are a type of spore that is present in heterosporous plants. These types of plants have two spore types, megaspores and microspores. Generally speaking, the megaspore, or large spore, germinates into a female (egg-producing) gametophyte, which is fertilized by sperm produced by the male gametophyte developing from the microspore.
Source: http://en.wikipedia.org/wiki/Megaspore
| Triletes spurius | Knobloch (1984), Pl. II, fig. 3 | | | EK174 | | Triletes spurius | Knobloch (1984), Pl. I, fig. 5, 6 | | | EK175 | | Triletes spurius | Knobloch (1984), Pl. I, fig. 2 | | | EK199 | | Triletes spurius | Knobloch (1984), Pl. XV, fig. 11 | | | EK78 | | Triletes spurius | Knobloch (1984), Pl. I, fig. 2 | | | EK120 | | Triletes spurius | Knobloch (1984), Pl. XV, fig. 12 | | | EK77 | | Triletes spurius | Knobloch (1984), Pl. I, fig. 4 | | | EK200 | | Triletes spurius | Knobloch (1984), Pl. I, fig. 4 | | | EK212 | | Triletes spurius | Knobloch (1984), Pl. I, fig. 3 | | | EK115 | | Triletes spurius | Knobloch (1984), Pl. I, fig. 1 | | | EK114 | | Triletes spurius | Knobloch (1984), Pl. XV, fig. 10 | | | EK76 | | Triletes spurius | Knobloch (1980) PL. I, fig. 1 | | | EK209 | | Triletes spurius | Knobloch (1984), Pl. II, fig. 2 | | | EK131 | | Triletes spurius | Knobloch (1984), Pl. II, fig. 4 | | | EK119 | | Valvisisporites cladnensis Kalibová, 1959 | Kalíbová (1959), Tab. 4, fig. 1, 2 -(vz. 31 Fr. /96) | | | YA1386 | | Valvisisporites nitens Kalibová, 1959 | Kalíbová (1959), Tab. 3, fig. 1(vz. 11 Km4/1534) | |  | YA1387 | | Verrutriletes compostipunctatus | Knobloch (1984), Pl. V, fig. 4, 5 | | | EK113 | | Verrutriletes compostipunctatus | Knobloch (1984), Pl. XIII, fig. 3, 7 | | | EK91 | | Verrutriletes compostipunctatus | Knobloch (1984), Pl. VI, fig. 7, 8 | | | EK138 | | Verrutriletes compostipunctatus | Knobloch (1984), Pl. IV. , fig. 5 | | | EK180 |
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