On the Systematic Anatomy of the Leaves of Some Japanese Carices IX

Abstract

4. An analytical key to the six species concerning the characters on the leaves follows.
1{Hinge cells oblong, thin-walled. Spine cells numerous in the upper epidermis. Transfusion cells evident ……2 Hinge cells unordered polygonal or oblong, thick-walled. Spine cell never found on the upper epidermis. Transfusion cells not evident ……3 Hinge cells in one layer, with many resemblances to the epidermal cells on the mesophyll. Cells in the upper epidermis on the mesophyll 40μ in breadth. Under epidermal cells on the
2{mesophyll 20μ in breadth, protuberances on them very thin-walled ……C. Augustinowiczii Hinge cells mostly in two layers, conspicuously thin-walled. Epidermal cells on the mesophyll very small, upper ones 20μ, under ones 10μ in breadth. Protuberances in the under epidermis thick-walled ……C. Meyeriana
3{Stomata distributed in the upper epidermis. Protuberances never found in the under epidermis, but very few in the upper one… ……C. Gmelini Stomata never found in the upper epidermis. Protuberances densely distributed in the under epidermis ……4
4{Protuberances distributed in the upper epidermal cells on the nerve ……C. Buxbaumü Protuberances never found in the upper eyidermal cells on the nerve ……5
5{Wall of the hinge cell almost flat. Epidermal cells in the margin with protuberances ……C. atrata Wall of the hinge cell slightly wavy. Epidermal cells in the margin mostly spined ……C. Mertensii var. urostachys