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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

4b. Leaf-sheaths closed into a continuous tube; leaves usually
         3-ranked; stems frequently triangular, usually solid
                                                     =CYPERACEAE=, p. 7.

5a. Flowers in dense spikes --6.

5b. Flowers in heads, racemes, or panicles --7.

     6a. Spike terminal, with pistillate flowers at the base and
         staminate ones at the apex                   =TYPHACEAE=, p. 2.

     6b. Spike short, apparently lateral, near the apex of the stem
                                                 3a, in =ARACEAE=, p. 8.

7a. Flowers in globose heads which are arranged in spikes, the lowest
    heads pistillate, the upper staminate; ovary 1-celled
                                                  =SPARGANIACEAE=, p. 2.

7b. Flowers in globose woolly heads terminating leafless unbranched
    stalks                                        =ERIOCAULACEAE=, p. 9.

7c. Flowers in a spike-like raceme; ovaries 3-6, separate or nearly so
                                                  =JUNCAGINACEAE=, p. 3.

7d. Flowers in heads or panicles, all perfect, not woolly, with one
    ovary --8.

     8a. Leaves less than 1 cm. wide, or none; divisions of the perianth
         6                                           =JUNCACEAE=, p. 10.

     8b. Leaves 2 cm. wide or more; petals 5
                                           2a, in =UMBELLIFERAE=, p. 80.

9a. Flowers regular, with all the petals of approximately the same size
    and shape --10.

9b. Flowers irregular, with the petals of each flower not of the same
    size or shape --22.

     10a. Ovaries 3 or more, separate or barely united with each other
          at the base --11.

     10b. Ovary one in each flower --12.

11a. Ovaries 3-6 in number; flowers in spikes or racemes; leaves linear
                                                  =JUNCAGINACEAE=, p. 3.

11b. Ovaries more than 6                             =ALISMACEAE=, p. 3.

     12a. Flowers or flower-clusters lateral, axillary or apparently so
         --13.

     12b. Flowers or flower-clusters terminal or on leafless stalks
         --14.

13a. Leaves minute and scale-like; flowers greenish-yellow
                                              2a, in =LILIACEAE=, p. 10.

13b. Leaves linear, grass-like                3b, in =IRIDACEAE=, p. 13.

13c. Leaves lanceolate or broader, not grass-like or scale-like
                                              2b, in =LILIACEAE=, p. 10.

     14a. Divisions of the perianth 5-12 cm. long --15.

     14b. Divisions of the perianth less than 5 cm. long --16.

15a. Flowers blue, or blue marked with yellow 1a, in =IRIDACEAE=, p. 15.

15b. Flowers not blue                        12a, in =LILIACEAE=, p. 11.

     16a. Flowers solitary --17.

     16b. Flowers 2 or more, in some kind of a cluster --18.

17a. Leaves 2, broadly heart-shape, basal, on long stalks
                                       1b, in =ARISTOLOCHIACEAE=, p. 25.

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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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