[166]

Self-Fertile yet with structures for crossing

Platanthera hyperborea

Disa macrantha (often believe to be often crossed

Epipactis viridifolia regularly self-fertilised - no rostellum pulvin as in Pogonia may be crossed by [visitant] pollen carried by insects)

Labellum contains nectar

Cephalanthera

Cases occur where all other species require insect aid are produce plenty of seed, & where other sp. are sterile!!!

Listera ovata apparently can ocasionlly fertilise itself & Neottia nidus avis can do so very well.

[166v]

Thelymitra carnea & longifolia according to [illeg] always [2 words illeg], & the flowers

of the former rarely expand, & of the latter only for about an hour - They seem tending to a

[illeg], condition.

Only case Kerner to me of 2 sp in genus, which regularly do [2 words illeg], (whereas a 3d spec is sterile without insect aid