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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

25a. Leaves less than 2 cm. long               =CALLITRICHACEAE=, p. 68.

25b. Leaves more than 2 cm. long              1b, in =NAJADACEAE=, p. 2.

     26a. Leaves attached by the center to the stalk
                                           2b, in =NYMPHAEACEAE=, p. 35.

     26b. Leaves attached by the margin --27.

27a. Leaves parallel-veined --28.

27b. Leaves net-veined, with a single mid-vein; lanceolate or elliptical
     in outline                           29b, in =POLYGONACEAE=, p. 28.

     28a. Leaves not over 2 dm. long          1b, in =NAJADACEAE=, p. 2.

     28b. Leaves very long and grass-like     14a, in =GRAMINEAE=, p. 5.

29a. Brown, yellow, or white plants, without green color --30.

29b. Plants with normal green color, at least in some parts --33.

     30a. Stemless and leafless plants, consisting of flowers only and
          partly underground                     4a, in =ARACEAE=, p. 8.

     30b. Stems climbing on other plants 1b, in =CONVOLVULACEAE=, p. 91.

     30c. Stem and flower-stalks erect, not climbing --31.

31a. Corolla regular; stamens 6-12            1a, in =ERICACEAE=, p. 84.

31b. Corolla irregular --32.

     32a. Sepals and petals each 3; flowers in simple racemes
                                            5a, in =ORCHIDACEAE=, p. 16.

     32b. Sepals 5; corolla of united petals    =OROBANCHACEAE=, p. 106.

33a. Stem thick and fleshy, leafless, thorny         =CACTACEAE=, p. 77.

33b. Stem not thorny --34.

     34a. Leaves none --35.

     34b. Leaves reduced to small scales --40.

     34c. Leaves thick and fleshy --44.

     34d. Leaves hollow --45.

     34e. Leaves small, all basal, bearing large glandular hairs on the
          upper surface                            =DROSERACEAE=, p. 48.

35a. Stem none, the flowers appearing at or partially beneath the
     surface of the soil                         4a, in =ARACEAE=, p. 8.

35b. Stem present --36.

     36a. Stem freely branched                2a, in =LILIACEAE=, p. 10.

     36b. Stem unbranched, except possibly in the flower-clusters
          --37.

37a. Flowers greenish or brownish, without obvious colored petals --38.

37b. Flowers with conspicuous white or colored petals --39.

     38a. Each flower with 6 small chaffy petals
                                               4, in =JUNCACEAE=, p. 10.

     38b. Petals none; each flower in the axil of a single chaffy bract
                                              2a, in =CYPERACEAE=, p. 7.

39a. Flowers regular                         34a, in =LILIACEAE=, p. 11.

39b. Flowers irregular                     10a, in =ORCHIDACEAE=, p. 16.

     40a. Stem erect, unbranched or with one or two branches only --41.

     40b. Stem freely branched --42.

41a. Plants of moist soil, with opposite scales; corolla regular, with 4
     petal-like lobes                      1a, in =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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