The Plants of Michigan - novelonlinefull.com
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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.
110a. Ovary deeply 4-lobed, appearing like 4 separate ovaries; style 1 =l.a.b.i.aTAE=, p. 95.
110b. Ovary not 4-lobed --111.
111a. Stamens 2 --112.
111b. Stamens 3 =VALERIANACEAE=, p. 111.
111c. Stamens 4 --113.
112a. Flowers in dense heads 1a, in =ACANTHACEAE=, p. 107.
112b. Flowers solitary or in loose cl.u.s.ters =SCROPHULARIACEAE=, p. 101.
113a. Corolla distinctly 2-lipped and irregular --114.
113b. Corolla not distinctly 2-lipped, its 5 lobes all alike or nearly so --115.
114a. Calyx 2-lipped; the upper lip with 3 awl-shape teeth, the lower with 2 short teeth; flowers in slender terminal spikes =PHRYMACEAE=, p. 107.
114b. Calyx not obviously 2-lipped, its teeth equal or nearly so =SCROPHULARIACEAE=, p. 101.
115a. Flowers sessile or nearly so, in spikes --116.
115b. Flowers in nodding pairs at the top of a slender stalk 3a, in =CAPRIFOLIACEAE=, p. 109.
115c. Flowers solitary or in cl.u.s.ters; not in spikes or nodding pairs --117.
116a. Corolla not over 1 cm. long =VERBENACEAE=, p. 99.
116b. Corolla 1.5 cm. long or more =SCROPHULARIACEAE=, p. 101.
117a. Calyx-lobes 15-25 mm. long; flowers blue, 3-5 cm. long; calyx without an obvious tube 2, in =ACANTHACEAE=, p. 107.
117b. Calyx-lobes united below into an obvious calyx-tube =SCROPHULARIACEAE=, p. 101.
--118--
118a. Leaves deeply lobed, compound, or dissected --119.
118b. Leaves simple and not deeply lobed --129.
119a. Leaves once-pinnately compound or lobed --120.
119b. Leaves once-palmately compound or lobed --124.
119c. Leaves dissected or 2-3 times compound --125.
120a. Leaves merely lobed --121.
120b. Leaves actually compound --123.
121a. Flowers axillary; marsh or swamp plants =HALORAGIDACEAE=, p. 79.
121b. Flowers in terminal cl.u.s.ters --122.
122a. Stamens 2-6; taste mustard-like 52b, in =CRUCIFERAE=, p. 46.
122b. Stamens 10 or more =RESEDACEAE=, p. 48.
123a. Leaflets entire =LIMNANTHACEAE=, p. 68.
123b. Leaflets serrate 70a, in =ROSACEAE=, p. 57.
124a. Flowers solitary 31a, in =RANUNCULACEAE=, p. 38.
124b. Flowers in dense terminal umbels or heads =UMBELLIFERAE=, p. 80.
124c. Flowers in terminal racemes 2a, in =COMPOSITAE=, p. 114.
124d. Flowers in axillary spikes or panicles 9b, in =URTICACEAE=, p. 24.
125a. Leaves merely dissected, not truly compound with distinct leaflets --126.
125b. Leaves truly compound, with distinct petiolate leaflets --127.
126a. Flowers in axillary cl.u.s.ters =CHENOPODIACEAE=, p. 28.
126b. Flowers in terminal cl.u.s.ters =COMPOSITAE=, p. 113.
127a. Stamens 5; flowers in umbels --128.
127b. Stamens 6; flowers in small cl.u.s.ters 3b, in =BERBERIDACEAE=, p. 40.
127c. Stamens many; flowers in racemes or panicles =RANUNCULACEAE=, p. 35.
128a. Styles 5 =ARALIACEAE=, p. 80.
128b. Styles 2 =UMBELLIFERAE=, p. 80.
