. Handbook of flower pollination : based upon Hermann MuÌller's work 'The fertilisation of flowers by insects' . Fertilization of plants. PLUMB AG INEAE 55. LXIII. ORDER PLVMBAGINEAE JUSS. Literature.âKnuth, ' Bl. u. Insekt. a. d. nordfr. Ins.,' p. 122. Flowers small but biightly coloured, and arranged in heads or corymbs. Nectar secreted and concealed in the bases of the flowers, which therefore belong to class C or S. Fritz Miiller states that many species of Plumbago and Statice are dimor- phous (Bot. Ztg., Leipzig, xxvi, 1868, p. 113). 536. Armeria L. 1790. A. elongata Hoflfm. ( = A. vulga
. Handbook of flower pollination : based upon Hermann MuÌller's work 'The fertilisation of flowers by insects' . Fertilization of plants. PLUMB AG INEAE 55. LXIII. ORDER PLVMBAGINEAE JUSS. Literature.âKnuth, ' Bl. u. Insekt. a. d. nordfr. Ins.,' p. 122. Flowers small but biightly coloured, and arranged in heads or corymbs. Nectar secreted and concealed in the bases of the flowers, which therefore belong to class C or S. Fritz Miiller states that many species of Plumbago and Statice are dimor- phous (Bot. Ztg., Leipzig, xxvi, 1868, p. 113). 536. Armeria L. 1790. A. elongata Hoflfm. ( = A. vulgaris Willd., Statice Armeria Z., and S. elongata Hoffm.). (Sprengel, ' Entd. Geh.,' pp. 174-5; Treviranus, Bot. Ztg., Leipzig, , 1863; MacLeod, Bot. Cenlralbl., Cassel, , 1887; Knuth, op. cit., xlviii, 1891, 'Vergl. Beob.,' ' Bl. u. Insekt. a. d. nordfr. Ins.,' pp. 122-3, ' Weit. Beob. ii. Bl. u. Insekt. a. d. nordfr. Ins.,' p. 239, ' Bl. u. Insekt. a. d. Halligen': Kerner, 'Nat. Hist. PI.,' Eng. Ed. I, n. p. 358; Schulz, â Beitrage,' I, pp. 89-90.) â The plants of this species which I have investi- gated in the North Frisian Islands belong to a variety often reckoned as a distinct species (A. maritima WillJ.). The flowers smell of cumarin, and the conical calyx, about 5 mm. in length, possesses a membranous limb of bright-violet colour like the corolla, and strengthened by five stiff' teeth, the reddish tips of which enhance conspicuousness. The five corolla-lobes alternate with these teeth, are 8 mm. long and 5 mm. broad, and only connected at their bases. Each of them is traversed by a strong median vein of darker colour, and two weaker lateral ones. These lobes are held together by the calyx so as to constitute a funnel-shaped tube about 7 mm. deep. The stamens are 4-5 mm. long and opposed to the petals. Upon the top of the ovary there is a green five-rayed nectary, from the middle of which spring five styles equalling the stamens in length. The lower third of t
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