The Plants of Michigan - LightNovelsOnl.com
You're reading novel online at LightNovelsOnl.com. Please use the follow button to get notifications about your favorite novels and its latest chapters so you can come back anytime and won't miss anything.
=Bilberry, Vaccinium uliginosum.=
33b. Leaves finely serrulate; petals 5 =Bilberry, Vaccinium caespitosum.=
34a. Leaves serrulate, green beneath, acute; corolla globular =Bilberry, Vaccinium membranaceum.=
34b. Leaves entire, pale beneath, obtuse; corolla ovoid =Bilberry, Vaccinium ovalifolium.=
PRIMULACEAE, the Primrose Family
Herbs, with alternate or opposite simple leaves and regular flowers; petals more or less united; stamens attached one in front of each petal; ovary 1-celled with 1 style.
1a. Leaves all basal; flowers on leafless stalks --2.
1b. Stem-leaves present --5.
2a. Flowers nodding, the petals reflexed (3-6 dm. high; flowers showy, white or pink, in spring) =Shooting Star, Dodecatheon meadia.=
2b. Flowers erect or spreading; petals not reflexed --3.
3a. Corolla not longer than the calyx; flowers small and inconspicuous (1 dm. high; flowers white or pink, spring) =Androsace, Androsace occidentalis.=
3b. Corolla conspicuous, much longer than the calyx (flowers pink or purple, summer) (Primrose) --4.
4a. Leaves white-mealy beneath (1-4 dm. high) =Primrose, Primula farinosa.=
4b. Leaves green beneath (2 dm. high or less) =Primrose, Primula mista.s.sinica.=
5a. All the stem-leaves in one whorl just below the flower-cl.u.s.ter --6.
5b. Stem-leaves several or many, scattered over the stem --7.
6a. Stem-leaves about 1 cm. long --3a.
6b. Stem-leaves 5-10 cm. long =Star Flower, Trientalis americana.=
7a. Flowers red, blue, or white (summer) --8.
7b. Flowers yellow (summer) --9.
8a. Leaves opposite; flowers axillary (stems spreading, 1-4 dm.
long; flowers blue or red) =Pimpernel, Anagallis arvensis.=
8b. Leaves alternate; flowers racemose (1-4 dm. high; flowers minute, white) =Water Pimpernel, Samolus floribundus.=
9a. Stem creeping =Moneywort, Lysimachia nummularia.=
9b. Stem erect (Loosestrife) --10.
10a. Flowers in dense spike-like racemes (3-8 dm. high) =Loosestrife, Lysimachia thyrsiflora.=
10b. Flowers axillary or racemose (3-9 dm. high) --11.
11a. Corolla dotted or streaked with purple or brown; leaves punctate with dark spots --12.
11b. Corolla plain yellow; leaves not dark-dotted --14.
12a. Flowers in racemes --13.
12b. Flowers all axillary =Loosestrife, Lysimachia quadrifolia.=
13a. Flowers all in racemes; leaves opposite or some of them alternate =Loosestrife, Lysimachia terrestris.=
13b. The lowest flowers axillary; leaves opposite or whorled =Loosestrife, Lysimachia producta.=
14a. Leaves ovate, on slender ciliate petioles =Loosestrife, Steironema ciliatum.=
14b. Leaves lanceolate, sessile or short-petioled, pinnately veined =Loosestrife, Steironema lanceolatum.=
14c. Leaves linear, with one mid-vein =Loosestrife, Steironema quadriflorum.=
OLEACEAE, the Olive Family
Trees or shrubs, with opposite leaves and regular flowers; sepals 4, or calyx none; petals 4, united, or none; stamens usually 2; ovary 2-celled, superior.
1a. Leaves simple (shrub 2-5 m. high; flowers blue or white, in showy cl.u.s.ters in spring) =Lilac, Syringa vulgaris.=
1b. Leaves compound (trees; flowers greenish, inconspicuous, in spring) (Ash) --2.
2a. Lateral leaflets sessile =Black Ash, Fraxinus nigra.=
2b. Lateral leaflets stalked --3.
3a. Twigs sharply 4-angled =Blue Ash, Fraxinus quadrangulata.=
3b. Twigs not distinctly angled --4.
4a. Leaves p.u.b.escent beneath =Red Ash, Fraxinus pennsylvanica.=
4b. Leaves glabrous beneath --5.
5a. Leaves pale-green beneath, obscurely serrulate =White Ash, Fraxinus americana.=
