Dryandra

Dryandra nivea, from Wikimedia.

Belongs within: Proteaceae.

Dryandra has been recognised as a genus of shrubs and small trees found in south-western Western Australia. Recent revisions have suggested its synonymisation with the related genus Banksia, from which it was previously distinguished by having flat rather than conical inflorescences.

Characters (from A. S. George): Shrubs or small trees, many prostrate. Leaves serrate to pinnatifid or pinnatipartite, sometimes almost pinnatisect, sometimes bipinnatifid, sometimes entire, hairy becoming glabrous adaxially, closely tomentose or woolly between nerves abaxially. Inflorescence terminal, axillary or on short lateral branchlet, commonly sessile, capitate; receptacle concave, flat or convex; involucre usually prominent, of many imbricate flat or subulate bracts, persistent; flowering usually centripetal; flowers 15–250 per head; floral bracts usually enlarged after flowering. Perianth straight or curved; tepals separating almost to base at anthesis. Pistil straight or curved, with style often exserted to one side before anthesis; pollen presenter usually erect, narrower, as wide as or wider than style. Follicles few per head, woody but not massively so, commonly striate, in 2 species cartilaginous. Seed usually with a terminal wing, rarely elliptic with an annular wing and then without a separator but with 2 supplementary outer wings.

<==Dryandra
    |--D. arborea G04a
    |--D. armata OS04
    |--D. bipinnatifida GK00
    |--D. carduacea RL05
    |--D. erythrocephala G04b
    |--D. ferruginea G04b
    |    |--D. f. ssp. ferruginea G04b
    |    `--D. f. ssp. flavescens G04b
    |--D. floribunda S35
    |--D. fraseri OS04
    |--D. lindleyana JK08
    |    |--D. l. ssp. lindleyana OS04
    |    `--D. l. ssp. sylvestris OS04
    |--D. nivea S35
    |--D. nobilis OS04
    |--D. pallida G04b
    |--D. porrecta GK00
    |--D. praeformosa Ettingshausen 1886 F71
    |--D. praemorsa JK08
    |--D. purdieana G04b
    |--D. rufistylis OS04
    |--D. sessilis JK08
    |--D. squarrosa JK08
    `--D. viscida G04b

*Type species of generic name indicated

REFERENCES

[F71] Fletcher, H. O. 1971. Catalogue of type specimens of fossils in the Australian Museum, Sydney. Australian Museum Memoir 13: 1-167.

[G04a] Gibson, N. 2004a. Flora and vegetation of the Eastern Goldfields Ranges: part 6. Mt Manning Range. Journal of the Royal Society of Western Australia 87 (2): 35-47.

[G04b] Gibson, N. 2004b. Flora and vegetation of the Eastern Goldfields Ranges: part 7. Middle and South Ironcap, Digger Rock and Hatter Hill. Journal of the Royal Society of Western Australia 87 (2): 49-62.

[GK00] Gibson, N., & G. J. Keighery. 2000. Flora and vegetation of the Byenup-Muir reserve system, south-west Western Australia. CALMScience 3 (3): 323-402.

[JK08] Johnstone, R. E., & T. Kirkby. 2008. Distribution, status, social organisation, movements and conservation of Baudin's cockatoo (Calyptorhynchus baudinii) in south-west Western Australia. Records of the Western Australian Museum 25 (1): 107-118.

[OS04] Obbens, F. J., & L. W. Sage. 2004. Vegetation and flora of a diverse upland remnant of the Western Australian wheatbelt (Nature Reserve A21064). Journal of the Royal Society of Western Australia 87 (1): 19-28.

[RL05] Rafferty, C., & B. B. Lamont. 2005. Selective feeding by macropods on vegetation regenerating following fire. Journal of the Royal Society of Western Australia 88 (4): 155-165.

[S35] Solomon, M. E. 1935. On a new genus and two new species of Western Australian Aleyrodidae. Journal of the Royal Society of Western Australia 21: 75-91.