Page:Flora Australiensis Volume 5.djvu/576

Series 2. Floribundæ.—Flower-heads small, mostly terminal, the floral leaves either shorter than the flowers or few and spreading. Involucres broad. Perianths under 1 in. long.
Leaves obovate or cuneate, prickly-toothed, flat. Perianth silky-pubescent	8. D. floribunda.
Leaves lanceolate, prickly-toothed or semipinnatifid, flat. Perianth silky-hairy.	9. D. carduacea.
Leaves linear with revolute margins, entire or with few prickly teeth. Perianth glabrous.	10. D. carlinoides.
Leaves pinnate with numerous small segments, the margins revolute.
Leaf-segments narrow, distant. Perianth-limb glabrous.	11. D. polycephala.
Leaf-segments short, approximate. Perianth-limb narrow, densely villous.	12. D. Kippistiana.
Series 3. Concinnæ.—Flower-heads small, broad, axillary, the bracts narrow, the floral leaves usually spreading. Leaves flat or nearly so, tomentose underneath, pinnatifid, with short lobes.
Leaves narrow, the lobes small and distant.	13. D. squarrosa.
(See also 33, D. patens, with the flower-heads of the Concinnæ but the foliage of the Obvallatæ.)
Leaf-lobes contiguous, ovate-triangular, mucronate-acute.
Leaf-lobes reaching about halfway to the midrib.
Involucral bracts acute, ciliate.	14. D. serra.
Involucral bracts obtuse, tomentose.	15. D. concinna.
Leaf-lobes divided nearly to the midrib.	16. D. foliolata.
Series 4. Formosæ.—Flower-heads large, broad, terminal or axillary. Involucral bracts broad; villous. Leaves flat or nearly so, with numerous contiguous triangular lobes or segments, tomentose underneath, acute but not pungent-pointed.
Leaf-lobes scarcely reaching above halfway to the midrib. Flower-heads mostly terminal.	17. D. stupposa.
Leaf-lobes deep but not reaching the midrib. Flower-heads mostly lateral.
Styles nearly 2 in. long.	18. D. nobilis.
Styles under 1½ in. long.	19. D. mucronulata.
Leaves divided to the midrib.
Leaf-segments 2 to 4 lines long. Flower-heads mostly terminal.	20. D. formosa.
Leaf-segments under 2 lines long. Flower-heads mostly lateral.	21. D. Baxteri.
Series 5. Niveæ.—Flowering stems from a creeping trunk very short, with one or few ovoid flower-heads surrounded by long floral leaves. Leaves pinnate with numerous rigid segments white underneath except in D. nana.
Leaf-segments contiguous, triangular or falcate, 1 to 3 lines long	22. D. nivea.
Leaf-segments separated by broad sinuses, linear, 2 to 4 lines long
Style under 2 in. long; stigmatic end narrow.	23. D. arctotidis.
Style about 3 in. long; stigmatic end large, ovoid.	24. D. nana.
Leaf-segments linear, ½ to above 1 in. long, some of them again lobed.	25. D. Preissii.
(See also 30, D. vestita, which has sometimes dwarf flowering-stems.)
Series 6. Obvallatæ.—Flower-heads axillary, ovoid or small, enveloped in long floral leaves. Leaves either pinnate with very small rigid segments or more frequently pinnatifid with very rigid pungent-pointed lobes.
Leaves pinnate with numerous decurrent segments, under 2 lines long, the margins revolute.