Gymnosperm Slides There are 157 products.

Gy1271c Pinus monophylla, single-leaf pine, leaves t.s.

Gy1272c Pinus nigra, Austrian pine, the two-needle type, leaves t.s.

Gy1273c Pinus australis, long-leaf pine, the three-needle type, leaves t.s.

Gy1274c Pinus strobus, white pine, the five-needle type, leaves t.s.

Gy128d Pinus, male cone with pollen t.s. (staminate cone)

Gy129d Pinus, male cone with pollen l.s.

Gy1291d Pinus, young male cone with developing pollen l.s.

Gy1295e Pinus, l.s. and t.s. of male (staminate) cone on one slide

Gy130b Pinus, mature pollen grains w.m.

Gy1301d Pinus, germinating pollen grains with pollen tubes w.m.

Gy131d Pinus, young female (ovulate) cone, entire l.s. for general study

Gy132e Pinus, young female cone at time of pollination, l.s. with pollen grains...