Page:Flora Australiensis Volume 5.djvu/330

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318
CIV. PROTEACEÆ.

Leaves verticillate. Ovules descending

14. Macadamia

Flowers sessile, in pairs, in cylindrical spikes. Fruit thick and woody, tardily dehiscent. Leaves opposite

15. Xylomelum

Flowers solitary or clustered on irregularly branched peduncles. Fruit a follicle. Leaves alternate, compound.

16. Carnarvonia

Flowers sessile or nearly so, in pairs, in cylindrical or oblong spikes. Fruit a follicle. Leaves alternate.

17. Orites

Ovules 2. Perianrh long and narrow. Anthers linear. Flowers solitary, or 7 together in an involucre of persistent imbricate bracts. Leaves verticillate.

18. Lambertia

Ovules 2. Perianth revolute in the bud or rarely straight and regular. Anthers short and sessile within the concave laminæ. Leaves alternate.

Ovules orthotropous, pendulous. (Fruit a drupe?).

19. Adenostephanus

Ovules amphitropous, laterally attached. Fruit a follicle.

Seeds without wings or the wings short at both ends or annular. Inflorescence terminal, rarely also axillary.

20. Grevillea

Seeds winged, chiefly or entirely at the upper end. Inflorescence axillary.

21. Hakea

Ovules 4, collateral. Perianth revolute in the bud or straight and regular. Anthers short and sessile within the concave lamin&aelig. Fruit a follicle. Leaves alternate.

Perianth revolute in the bud. Hypogynous gland unilateral or semiannular. Follicle short and broad.

22. Buckinghamia

Perianth straight. Hypogynous glands 4. Follicle oblong, recurved

23. Darlingia
Tribe 6. Embothrieæ.Ovules several, imbricate in 2 rows. Seeds usually separated by thin laminæ or a mealy substance.

Flowers in short compact racemes, surrounded by an involucre of imbricate coloured bracts.

24. Telopea.

Flowers in loose racemes. Bracts small or deciduous.

Hypogynous glands 3. Ovules imbricate upwards. Seeds winged at the upper end.

25. Lomatia.

Hypogynous glands 4. Ovules imbricate downwards. Seeds with narrow wings all round

26. Cardwellia.

Flowers in umbels without bracts.

27. Stenocarpus.
Tribe 7. Banksieæ.Ovules 2, collateral. Seeds separated either by a hard usually woody substance or by a membrane rarely wanting. Flowers in dense cones or heads.

Flowers in ovoid or cylindrical cones, without any involucre.

28. Banksia

Flowers in heads surrounded by an involucre of imbricate bracts and floral leaves.

29. Dryandra

Suborder 1. Nucamentaceæ—Fruit an indehiscent nut or drupe, either 1-seeded or if 2-seeded the seeds separated by a complete dissepiment continuous with the endocarp. Flowers usually solitary within each bract, in cones or spikes or solitary, very rarely racemose, the spikes often shortened into heads.

Tribe 1. Proteeæ—Anthers all perfect, or very rarely the upper one abortive, with 2 parallel cells adnate to the connectivum, inserted at the base of the short spreading lamin&aelig of the perianth. Ovule 1 or in a very few species a second one more or less developed. Stigma at the point of the straight style end. Fruit a dry nut.