Organography of plants, especially of the archegoniatae and spermaphyta . Fig. 18. Blyttia decipiens. I gathered this ini885at Nuwara Elyia in Ceylon. Illustration ofthe habit of a male plant with two cylindric ventrallateral shoots. Magnified 2. Fig. 19. Hymenophytum flabellatum. Seenfrom the under side. The plant on the right of thefigure bears fructification, and a lateral shoot aris-ing to the left has produced two small sexual shootsappearing as scales upon its under side. Mag-nified 2. BRANCHING of Polygonatum. If the assimilation-shoots, which here have Hmitedgrowth, possessed a leaf-li
Organography of plants, especially of the archegoniatae and spermaphyta . Fig. 18. Blyttia decipiens. I gathered this ini885at Nuwara Elyia in Ceylon. Illustration ofthe habit of a male plant with two cylindric ventrallateral shoots. Magnified 2. Fig. 19. Hymenophytum flabellatum. Seenfrom the under side. The plant on the right of thefigure bears fructification, and a lateral shoot aris-ing to the left has produced two small sexual shootsappearing as scales upon its under side. Mag-nified 2. BRANCHING of Polygonatum. If the assimilation-shoots, which here have Hmitedgrowth, possessed a leaf-like habit, and this would be more marked if theybranched by repeated forkings, we should have structures like the leaves ofmany ferns ^ ; and, indeed, from the point of view of their function, theywould be exactly the leaves of a small Hymenophyllum. It is of specialinterest to note that in no fewer than three genera do w^e find this form ofthe vegetative body—namely, in Symphyogyna (Fig. 17), Blyttia (Fig. 18),and Hymenophytum (Fig. 19). They are, it is true, allied,
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Keywords: ., bookcentury1900, bookdecade1900, bookido, booksubjectplantanatomy
