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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

23b. Flowers or flower-heads numerous or several on each flower-stalk
     --38.

     24a. Flowers yellow --25.

     24b. Flowers not yellow --29.

25a. Juice milky                            16, in =COMPOSITAE=, p. 115.

25b. Juice not milky --26.

     26a. Aquatic or mud plants, with large entire leaves 1-4 dm. wide
                                                  =NYMPHAEACEAE=, p. 35.

     26b. Land plants, with smaller or lobed leaves --27.

27a. Flower-stalk scaly                    110, in =COMPOSITAE=, p. 122.

27b. Flower-stalk bare or with 1 to 2 minute bracts --28.

     28a. Flowers regular                 10, in =RANUNCULACEAE=, p. 36.

     28b. Flowers irregular, with a spur      3a, in =VIOLACEAE=, p. 75.

29a. Flowers obviously irregular, with a spur --30.

29b. Flowers regular or nearly so, without a spur --31.

     30a. Leaves sessile or nearly so; stamens 2
                                             =LENTIBULARIACEAE=, p. 105.

     30b. Leaves petioled; stamens 5                 =VIOLACEAE=, p. 75.

31a. Flowers 3 mm. wide or smaller; leaves thread-like
                                     16a, in =SCROPHULARIACEAE=, p. 103.

31b. Flowers 6 mm. wide or larger --32.

     32a. Ovary 1 --33.

     32b. Ovaries numerous --37.

33a. Leaves lobed or cleft --34.

33b. Leaves entire or toothed --35.

     34a. Leaves deeply 2-cleft; stamens 8
                                          3a, in =BERBERIDACEAE=, p. 40.

     34b. Leaf 1, palmately lobed; stamens numerous
                                           1a, in =PAPAVERACEAE=, p. 41.

35a. Flowers dull red =ARISTOLOCHIACEAE=, p. 25.

35b. Flowers white or pinkish --36.

     36a. Leaves entire; stamens with good anthers 5
                                          13, in =SAXIFRAGACEAE=, p. 50.

     36b. Leaves minutely toothed; stamens 8-10
                                             14a, in =ERICACEAE=, p. 85.

37a. Leaves lobed or divided                     =RANUNCULACEAE=, p. 35.

37b. Leaves crenate or toothed 64a, in =ROSACEAE=, p. 56.

                                --38--

     38a. Flowers of the composite type, with several or many small
          flowerets closely aggregated into a dense head surrounded by a
          calyx-like involucre of small bracts
                                             10, in =COMPOSITAE=. p. 114.

     38b. Flowers separate; variously clustered, but never crowded into
          involucred heads --39.

39a. Flowers in dense close spikes --40.

39b. Flowers in open loose clusters --42.

     40a. Flower-stalk leafless below the spike
                                               =PLANTAGINACEAE=, p. 107.

     40b. Flower-stalk with several bracts --41.

41a. Leaves entire                          9c, in =ORCHIDACEAE=, p. 16.

41b. Leaves toothed                   6a, in =SCROPHULARIACEAE=, p. 102.

     42a. Flowers in umbels --43.

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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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