Organography of plants, especially of the archegoniatae and spermaphyta . ith the morphological value of caulomes or * trichomes, see Part I, p. 17.* Farmer, Studies in Hepaticae: On Pallavicinia decipiens, Mitt., in Annals of Botany, viii(1894), p. 35. ^ Farmer has already proved this in Pellia epiphylla. See Annals of Botany, ix (1S95), p. 4S8. THE ANTHERIDIVM OF BRYOPHYTA SEXUAL ORGANS OF BRYOPHYTA 1. THE ANTHERIDIUAI. I. Structure and Position. The mature antheridium has thesame essential structure in Hepaticae and IMusci. The special body of theantheridium is seated upon a stalk (Fig. 2),
Organography of plants, especially of the archegoniatae and spermaphyta . ith the morphological value of caulomes or * trichomes, see Part I, p. 17.* Farmer, Studies in Hepaticae: On Pallavicinia decipiens, Mitt., in Annals of Botany, viii(1894), p. 35. ^ Farmer has already proved this in Pellia epiphylla. See Annals of Botany, ix (1S95), p. 4S8. THE ANTHERIDIVM OF BRYOPHYTA SEXUAL ORGANS OF BRYOPHYTA 1. THE ANTHERIDIUAI. I. Structure and Position. The mature antheridium has thesame essential structure in Hepaticae and IMusci. The special body of theantheridium is seated upon a stalk (Fig. 2), the length of which varies inevident connexion with the relationships of life of the plant. It is shortin the antheridia of the Hepaticae if they are sunk in pits, and then, as weshall see, the mouth of the pit supplies frequently a mechanism for theejection of the spermatozoids ; it is long in Musci, where the antheridia arenot closely enveloped by leaves but stand more or less exposed and pro-tected only by paraphyses. Relatively long stalks are found in antheridia,organographyofpl02goeb. 38
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