Organography of plants, especially of the archegoniatae and spermaphyta . sson, Recherches sur la respirationet Iassimilation des Muscinees, in Comptes Rcndus, cxix (1S94). He comes to the same con-clusion :— the more considerable the proportion of water, the more intense is the gaseous exchange. * This interpretation was first given to me by my deceased friend Sachs. 54 VEGETATIVE ADAPTATION IN HEPATICAE layered cell-surface except at the midrib. Similar arrangements occur insome Javanese species of Aneura (Pseudoneura). An investigation ofliving plants is required to determine whether the ma
Organography of plants, especially of the archegoniatae and spermaphyta . sson, Recherches sur la respirationet Iassimilation des Muscinees, in Comptes Rcndus, cxix (1S94). He comes to the same con-clusion :— the more considerable the proportion of water, the more intense is the gaseous exchange. * This interpretation was first given to me by my deceased friend Sachs. 54 VEGETATIVE ADAPTATION IN HEPATICAE layered cell-surface except at the midrib. Similar arrangements occur insome Javanese species of Aneura (Pseudoneura). An investigation ofliving plants is required to determine whether the marginal cells of thethallus in species of Aneura absorb water. Aneura hymenophylloidesbehaves in a similar manner (, 48). Its thallus in some measure resembles the feather- riy r^ branched leaf of a species of HymenophyHum, and it possesses ^1 - if/f an excellent arrangement for re-taining water. The tips of thethallus are all strongly incurveddownwards, and the branches,placed in two rows upon thechief axis, converge by their undersides, each branch having its. Fig. 46. Aneura endiviav-folia. Portion ofthallus seen from below. The twigs are curledinwards and downwards. Magnified q.
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