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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

8a. Leaves with thin sheathing stipules  1b, in =NAJADACEAE=, p. 2.

     8b. Leaves without stipules --9.

9a. Flowers greenish, in a head                   =SPARGANIACEAE=, p. 2.

9b. Flowers pale yellow                  1b, in =PONTEDERIACEAE=, p. 10.

     10a. Leaves serrate                      2b, in =NAJADACEAE=, p. 2.

     10b. Leaves entire --11.

11a. Leaves 2 cm. long or less                 =CALLITRICHACEAE=, p. 68.

11b. Leaves thread-like, 2-8 cm. long         2a, in =NAJADACEAE=, p. 2.

11c. Leaves linear to elliptical, more than 2 cm. long
                                              1b, in =NAJADACEAE=, p. 2.

     12a. Leaves in whorls of 3, abruptly widened at the base
                                              2b, in =NAJADACEAE=, p. 2.

     12b. Leaves in whorls of 3, widest near the middle
                                        1b, in =HYDROCHARITACEAE=, p. 3.

     12c. Stems straight and erect, at leaves the flowers emerged;
          leaves in whorls of 4 or more  2a, in =HALORAGIDACEAE=, p. 79.

13a. Leaves with numerous small bladders attached, each bladder 1-3 mm.
     long                                    =LENTIBULARIACEAE=, p. 105.

13b. Leaves without bladders --14.

     14a. Leaves alternate --15.

     14b. Leaves opposite or whorled --18.

15a. Delicate and rare plants growing attached to stones in running
     water                                       =PODOSTEMACEAE=, p. 48.

15b. Plants 2 dm. high or more, with roots in mud or sand --16.

     16a. Leaves once-pinnate --17.

     16b. Leaves 2-3 times pinnate        15b, in =UMBELLIFERAE=, p. 81.

     16c. Leaves palmately dissected      1b, in =RANUNCULACEAE=, p. 35.

17a. Taste peppery or mustardy               34, in =CRUCIFERAE=, p. 45.

17b. Taste not peppery or mustardy       1a, in =HALORAGIDACEAE=, p. 79.

     18a. Leaves pinnately compound      3b, in =HALORAGIDACEAE=, p. 79.

     18b. Leaves palmately compound --19.

19a. Leaves opposite or in whorls of four 119a, in =COMPOSITAE=, p. 123.

19b. Leaves in whorls of 5-12                 =CERATOPHYLLACEAE=, p. 34.

     20a. Plants small, flattened, rounded or ovate, without distinction
          of stem and leaf; the whole plant floating on or near the
          surface                                     =LEMNACEAE=, p. 9.

     20b. Plant attached to the soil, with differentiated stem and
          leaves --21.

21a. Leaves on long slender stalks, which bear also a cluster of slender
     tubers near the leaf-base; leaves heart-shape
                                           1b, in =GENTIANACEAE=, p. 88.

21b. Leaf-stalks without a cluster of tubers --22.

     22a. Leaves all basal --23.

     22b. Stem-leaves present --24.

23a. Leaves parallel-veined                   1b, in =ALISMACEAE=, p. 3.

23b. Leaves net-veined                     1b, in =NYMPHAEACEAE=, p. 35.

     24a. Leaves opposite or whorled --25.

     24b. Leaves alternate --26.

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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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