A contribution to our knowledge of seedlings / by the Right Hon. Sir John Lubbock.

  • Lubbock, John, Sir, 1834-1913.
Date:
1896
Catalogue details

Licence: Public Domain Mark

Credit: A contribution to our knowledge of seedlings / by the Right Hon. Sir John Lubbock. Source: Wellcome Collection.

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    CYCADS orange or red, and the inner crusta- ceous or bony. Endo- sperm is copious and fleshy, embedding the subcylindrical em- bryo in its upper part; and the cotyle- dons are conferrumi- na,te or amalgamated in one piece, or free only at the base to permit the exit of the plumule. The seeds are large, and in all the seedlings observed the cotyledons are sub- terranean, remain- ing in the seed till the endosperm is ab- sorbed, when they decay. The plumule consists of a mass of stout, fleshy scales resembling a resting or winter bud, which emerges from the fis- sure at the base of Fig. 75.—Cycas Beddomei. A, first leaf; B, second leaf; G, G, petioles of cotyledons; S, seed. Nat. size.