Pyrola L.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1972, Flora Europaea. Volume 3. Diapensiacea to Myoporaceae, Cambridge: Cambridge University Press : 3

1. Pyrola L. 4

Glabrous, rhizomatous herbs. Leaves green, somewhat coriaceous, alternate, in lax basal rosettes; cauline leaves reduced to small scales. Flowers in terminal racemes, not secund. Anthers opening by pores at the end of short tubes. Pollen-grains in tetrads.

Literature: B. Krisa, Nov. Bot. Inst. Bot. Univ. Carol. Prag. 1965: 31-35 (1965)) G. Knaben & T. Engelskjön, Ârbok Univ. Bergen 1967(4)) 1-71 (1968).

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1 Style not expanded into a disc below thestigma

2 Style 1-2 mm, Included 1. minor 2 Styleatleast5 mm, exserted

3 Bracts lanceolate, equalling or shorter than pedicels

6. norvegica 3 Bracts ovate-lanceolate, longer than pedicels 7. carpatica 1 Style expanded into a disc below the stigma 4 Style straight; petiole not longer than lamina 2. media 4 Stylecurved; petiolelongerthanlamina 5 Flowers 15-20 mm in diameter; leaves subentire 5. grandiflora 5 Flowers 8-12 mm in diameter; leaves crenulate 6 Calyx-lobes 1 -5-2 mm, deltate, acute; petals yellowishgreen 3. chlorantha 6 Calyx-lobes 2-4-5 mm, lanceolate, acuminate; petals white

4. rotundifolia