Manual of British botany, containing the flowering plants and ferns / arranged according to the natural orders by Charles Cardale Babington.

  • Babington, Charles C. (Charles Cardale), 1808-1895.
Date:
1881
Catalogue details

Licence: Public Domain Mark

Credit: Manual of British botany, containing the flowering plants and ferns / arranged according to the natural orders by Charles Cardale Babington. Source: Wellcome Collection.

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    ovate bluntly keeled.—P. compressus Sm. E. B. 418. It, vii. 24, not Fries, nor Koch.—Lateral veins nearer together and nearer to the margin of the k than to the midrib (rarely some 1. are 3- veined), no intermediate veins.—Like Sp. 17 rather than Sp. 19. —Ditches. P. VI. VII. E. S. I. 21. P. pusil'lus (L.); st. subterete, I. linear S-veined, spikes short rather lax ^ or f shorter than the slender ped., sep. roundish-reniform, fr. obliquely ovate bluntly keeled.—£. B. 215. B. vii. 22.—St. slender. L. narrow, rather acute, without intermediate parallel veins, the lateral veins equidistant between the midrib and margin. Ped. scarcely compressed, not thickened. —[P. rutilus (Wolfg., Fries) has 3-veined attenuate-cuspidate 1., semiterete st., and oblong-elliptic fr. without a keel. Fl. Dan. 2891.]—Ponds and ditches. P. VI. E. S. I. 22. P. trichoules (Cham.) ; st. subterete, I. subsetaceous 1- - veined finely pointed, spikes short lax long-stalked, fr. semicir- cular compi'essed obscurely keeled, straight inner edge luith a tooth near its base.—Sy. E. B. 1420. B. vii. 21.—St. very slender, a little thickened below the joinings ; branches fascicu- late. L. not transversely veined. Floral stip. large. Ped. not thickened. Sep. roimdish, stalked. Monaudrous. Fr. often warted on the back and with a tubercle on each side at its base when fresh.—Franilingham, Norf. Wrotham, Sufi'. P. VIII. E. **** L. all submersed, alternate, linear, sheathing. 23. P. Jlabelldtus (Bab.) ; lower I. broadly linear abruptly apiculate or acuminate 3—5-vcined with transverse veins, upper I. narroAv acute o-veined, fr. (2 lin. long) broadl^v f-obovate inner edge nearly straight but gibbous near the top rounded on the back, nut with a prominent keel.—Sy. E. B. 1421. Pltgtol. iv. 1158.—Rhizome spreadhig, from a tuber that has outlived the winter. Floating st. branched, spreading like a fan. Broad lower 1. usually decayed at the time of fiowering. Lateral veins of upper L at the margin, of lower 1. distant from it. Spikes slightly interrupted. Back of fr. without ridges, roiuided when fresh; enclosed nut with faint lateral ridges.—Ponds and ditches chiefly near the sea. B. VI. VII. E. I. 24. P. pectindtus (L.); I. formed of 2 inten-upfed tubes, lower narrowly linear flattened slightly grooved above, upper setaceous, fr. (2 lin. long) broadly ^-obovate inuer edge rather convex rounded on the back, nut ivith 2 lateral ridges but (usually) no keel.—E. B. 323. B. vii. 19.—St. branched, forming linear masses. L. very gradually acute, all 1-veinod, no marginal veins and scarcely thickened there ; upper 1. with an oval section.
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