Thelymitra Key

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Based on forms seen on

the Tomaree Peninsula.

All sepals and petals including the

labellum similar.  Thelymitra.               1

1. Flower pink about 15 dia. Leaf less

than 3 dia.                  Thelymitra carnea

1. Not as above.

                                                         2

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2. Column bent forward forming a hood.

The opening facing forward.                 4

2. Column not bent forward. The U

shaped opening, with an inner ridge

outer fingers, and a pair of auxiliary

lobes faces up.                                    3

3. Fingers long auxiliary lobes wavy.

Never dotted.         Thelymitra purpurata

3. Fingers short auxiliary lobes jagged.

Sometimes dotted.     Thelymitra ixioides

4. In profile the hood looks flattened,

the extension forward is long, shallow

and does not taper.

                              Thelymitra atronitida

4. Not as above.

                                                          5

5. Leaf concave. Not fleshy. Three ribs

or angles obvious on the back.              6

5. Leaf V shaped. Fleshy. Only the angle

of the V obvious on the back.               7

6. Hood centreline a bit depressed at

the front. Opening top a broad V. In

profile the top is a convex arc, the nose

short and tapered.   Thelymitra brevifolia

6. The  hood  has  a narrow V, U or cleft

on top.                Thelymitra angustifolia

6. Hood tapers forward to an opening

which from the front looks small and

circular. Tufts coloured or sometimes

white. Large form of   Thelymitra malvina

7. In profile the hood up the back, over

the top and around the upper front

is convex. It looks swolen each side of

the opening.           Thelymitra pauciflora

7. In profile the hood abruptly flattens

on the forward half of the top then

curves tightly to a vertical front.

                            Thelymitra peniculata

7. Leaf about 3 wide. Column like malvina.

      Small form of  Thelymitra malvina

Note. The separation of purpurata and

ixioides is questionable.

For use with living plants.