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The Plants of Michigan: Simple Keys for the Identification of the Native Seed Plants of the State — John Shaqi

The Plants of Michigan: Simple Keys for the Identification of the Native Seed Plants of the StateGleason, Henry A. (Henry Allan)

Science

The Plants of Michigan: Simple Keys for the Identification of the Native Seed Plants of the State

Name: The Plants of Michigan: Simple Keys for the Identification of the Native Seed Plants of the State
Author: Gleason, Henry A. (Henry Allan)

Gleason, Henry A. (Henry Allan)

Plants -- Michigan

137a. Axillary buds superposed, i. e., with a second one just above the
      first                               1b, in =AQUIFOLIACEAE=, p. 69.

137b. Axillary buds not superposed           2b, in =RHAMNACEAE=, p. 71.

     138a. Leaves with purple petioles, which are at least one-fourth as
           long as the blade              1a, in =AQUIFOLIACEAE=, p. 69.

     138b. Leaves short-petioled or sessile --139.

139a. Stems erect and straight, unbranched or with very few branches
                                               27, in =ROSACEAE=, p. 53.

139b. Stems more or less crooked and freely branched, making a spreading
      shrub                                   25, in =ERICACEAE=, p. 86.

                                 --140--

     140a. Flowers appearing in autumn, after the leaves have fallen
                                                =HAMAMELIDACEAE=, p. 51.

     140b. Flowers appearing in spring, before the leaves have opened
           --141.

141a. Flowers in catkins, without brightly colored or petal-like parts
      --142.

141b. Flowers not in catkins, either with or without brightly colored or
      petal-like parts --149.

     142a. Leaves 2-ranked, as shown by the arrangement of buds and
           leaf-scars in two longitudinal rows, so that the third bud is
           directly over the first --143.

     142b. Leaves and leaf-scars not 2-ranked --146.

143a. Bundle-scars three in each leaf-scar --144.

143b. Bundle-scars several in each leaf-scar 2b, in =URTICACEAE=, p. 23.

     144a. Leaf-buds with only 1-3 visible bud-scales
                                             10, in =BETULACEAE=, p. 22.

     144b. Leaf-buds with more than 3 visible scales --145.

145a. Bark of the branches smooth and dark gray, the larger stems fluted
      with projecting longitudinal ridges    1b, in =BETULACEAE=, p. 21.

145b. Branches without projecting ridges      4, in =BETULACEAE=, p. 22.

     146a. Pith 3-angled                      8, in =BETULACEAE=, p. 22.

     146b. Pith 5-angled                      13b, in =FAGACEAE=, p. 23.

     146c. Pith cylindrical --147.

147a. Visible outer bud-scales 2 or more --148.

147b. Buds with a single visible outer scale
                                             13, in =SALICACEAE=, p. 20.

     148a. Bundle-scars 3 in each leaf-scar =MYRICACEAE=, p. 20.

     148b. Bundle-scars more than 3 in each leaf-scar
                                             2b, in =URTICACEAE=, p. 23.

149a. Flowers dark red-purple, about 3 cm. wide      =ANONACEAE=, p. 40.

149b. Flowers bright pink, irregular, about 1 cm. wide
                                            3a, in =LEGUMINOSAE=, p. 58.

149c. Flowers white, with 5 conspicuous petals --150.

149d. Flowers greenish or yellowish, small, inconspicuous --152.

     150a. Ovary 1, superior, i. e., in the center of the flower and not
           attached to surrounding parts       36, in =ROSACEAE=, p. 54.

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The Plants of Michigan: Simple Keys for the Identification of the Native Seed Plants of the State

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