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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

58b. Flowers solitary or few in the axils of the leaves --61.

59a. Leaves less than 5 mm. long           1a, in =GENTIANACEAE=, p. 88.

59b. Leaves more than 2 cm. long --60.

     60a. Inflorescence chiefly terminal, panicled
                                             2, in =COMPOSITAE=, p. 114.

     60b. Inflorescence chiefly axillary            =URTICACEAE=, p. 23.

61a. Flowers on long pedicels            2, in =CARYOPHYLLACEAE=, p. 31.

61b. Flowers on short pedicels or sessile --62.

     62a. Stem erect, repeatedly branched; leaves linear to oblong
                                                 =ILLECEBRACEAE=, p. 31.

     62b. Stem decumbent or prostrate --63.

63a. Leaves round, ovate, or kidney-shape, rounded at the base, crenate
     or lobed                            12a, in =SAXIFRAGACEAE=, p. 50.

63b. Leaves of a narrower shape, entire, tapering toward the base --64.

     64a. Principal leaves 2-3 cm. long      1a, in =ONAGRACEAE=, p. 78.

     64b. Principal leaves 1 cm. long or less --65.

65a. Petals present                                =ELATINACEAE=, p. 74.

65b. Petals none                               =CALLITRICHACEAE=, p. 68.

                                 --66--

     66a. Plants of the composite type, with several or many small
          flowerets closely aggregated into a dense head surrounded or
          subtended by a calyx-like involucre of small bracts --67.

     66b. Flowers solitary or variously clustered, but not in involucred
          heads --70.

67a. Involucre of 4 conspicuous white bracts, much larger than the small
     flower-cluster                           4a, in =CORNACEAE=, p. 83.

67b. Involucral bracts green or somewhat colored --68.

     68a. Stem more or less prickly               =DIPSACACEAE=, p. 112.

68b. Stem and leaves not prickly --69.

69a. Stem square; foliage aromatic when crushed       =LABIATAE=, p. 95.

69b. Stem not square; foliage not with the odor of mint
                                                   =COMPOSITAE=, p. 113.

     70a. The conspicuous portion of the perianth[1] composed of
          separate parts --71.

     70b. The conspicuous portion of the perianth[1] composed of united
          parts --97.

71a. Stem-leaves compound, or cleft to the very base --72.

71b. Stem-leaves simple --78.

     72a. Stamens more than 10 in each flower --73.

     72b. Stamens 5-10 in each flower --75.

73a. Ovary 1 in each flower                2a, in =PAPAVERACEAE=, p. 41.

73b. Ovaries several in each flower --74.

     74a. Leaves pinnately compound           68a, in =ROSACEAE=, p. 57.

     74b. Leaves palmately compound              =RANUNCULACEAE=, p. 35.

75a. Stamens 6                               31, in =CRUCIFERAE=, p. 44.

75b. Stamens 5 or 10 --76.

     76a. Leaflets reverse heart-shape; flowers yellow
                                                   =OXALIDACEAE=, p. 64.

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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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