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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

96b. Flowers white or pinkish             =CARYOPHYLLACEAE=, p. 31.

                                 --97--

97a. Perianth with but one circle of floral leaves --98.

97b. Perianth consisting of both calyx and corolla --101.

     98a. Flowers small, in dense heads subtended by conspicuous bracts
          --99.

     98b. Flowers 2-5, in a colored spreading 5-lobed involucre
                                                 =NYCTAGINACEAE=, p. 31.

     98c. Flowers in various sorts of clusters or solitary, but never in
          heads with a conspicuous involucre --100.

99a. Bracts 4, white and conspicuous; stem not thorny
                                              4a, in =CORNACEAE=, p. 83.

99b. Bracts green; stem thorny                    =DIPSACACEAE=, p. 112.

     100a. Stamens 3                            =VALERIANACEAE=, p. 111.

     100b. Stamens 4 or 5                           =RUBIACEAE=, p. 108.

101a. Anthers more numerous than the lobes of the corolla --102.

101b. Anthers just as many as the lobes of the corolla --103.

101c. Anthers fewer than the lobes of the corolla --110.

     102a. Leaves simple                          =POLYGALACEAE=, p. 65.

     102b. Leaves compound with 3 leaflets         =OXALIDACEAE=, p. 64.

     102c. Leaves finely dissected; stems climbing
                                            2a, in =FUMARIACEAE=, p. 41.

103a. Ovaries 2 --104.

103b. Ovary 1, but very deeply 4-lobed, with a single style
                                                      =LABIATAE=, p. 95.

103c. Ovary 1, not deeply lobed --105.

     104a. Stamens united, surrounding and more or less concealing the
           ovaries, and not resembling ordinary stamens
                                                =ASCLEPIADACEAE=, p. 90.

     104b. Stamens separate, of ordinary structure =APOCYNACEAE=, p. 90.

105a. Ovary inferior, appearing as a swelling below the calyx at the
      apex of the pedicel --106.

105b. Ovary superior, located in the center of the flower --107.

     106a. Corolla 3-4-lobed                        =RUBIACEAE=, p. 108.

     106b. Corolla 5-lobed              3b, in =CAPRIFOLIACEAE=, p. 109.

107a. Leaves toothed or deeply cut                 =VERBENACEAE=, p. 99.

107b. Leaves entire --108.

     108a. A stamen in front of the middle of each petal
                                                   =PRIMULACEAE=, p. 87.

     108b. Stamens located between the petals or lobes of the corolla,
           or else so far down in the tubular corolla that their
           position is not easily ascertained --109.

109a. Corolla salver-form, with a very slender tube, and abruptly
      spreading lobes                            =POLEMONIACEAE=, p. 92.

109b. Corolla salver-form, with a wide tube and fringed blue petals
                                                  =GENTIANACEAE=, p. 88.

109c. Corolla rotate, funnel-form, or bell-shape  =GENTIANACEAE=, p. 88.

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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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