. Comparative anatomy of the vegetative organs of the phanerogams and ferns;. Plant anatomy; Ferns. u° SCLERENCHYMA. On the other hand there commonly occur in Phanerogams fibres which are freely and often abundantly branched, and of a form which varies according to the special place of their occurrence: these usually occur in dissimilar lacunar tissue, with their branches projecting or pushed into its interstices. Inasmuch as these project like many branched hairs into wide, air-containing spaces, as in the Nymphae' acese, Limnanthemum, Aroidese, Rhizophora, the description of them will be mor
. Comparative anatomy of the vegetative organs of the phanerogams and ferns;. Plant anatomy; Ferns. u° SCLERENCHYMA. On the other hand there commonly occur in Phanerogams fibres which are freely and often abundantly branched, and of a form which varies according to the special place of their occurrence: these usually occur in dissimilar lacunar tissue, with their branches projecting or pushed into its interstices. Inasmuch as these project like many branched hairs into wide, air-containing spaces, as in the Nymphae' acese, Limnanthemum, Aroidese, Rhizophora, the description of them will be more clearly given when we treat of these spaces (Sect. 53), and we need only draw atten- tion here to their connection with the tissues treated of in this chapter. They also occur more especially in numerous tough, leathery foliage-leaves, though not in the ma- jority of them; they push their braaches into the intercellular spaces of the parenchyma, and appear to serve as strengthening apparatus for that tissue. With reference to the relations of their arrangement, to be treated in Chaps. IX and X, may here be men- tioned the short-branched fibres in the leaf-lamina of Proteacese (Hakea nitida, cera- tophylla, saligna, &c. ^), the long- and finely-branched fibres in the lamina of Olea europsea, emarginata, fragrans ^ the thick, starlike, short-branched ones of Camellia. Fig. S3.—From a transverse section of the leaf of Camellia japonica, P parencliyiiiatons cells, with chlorophyll grains and oil drops; i^ thin vascular bundle ; V branched sclerenchyma fibre. From Sachs' Textbook. japonica' (Fig. 53), Statice monopetala, the beautiful stellate, many-armed ones in the lamina and petiole of Fagraea obovata, and auriculata *- Also the leaf-lamina of the above-named Aroidese, especially the Monsterinese, and the Nymphseacese, may be here again cited. Stellate-branched fibres occur in the foliage-leaf of Sciadopitys, Dammara, Araucaria imbricata". Long-branched ones, someti
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