By Robert H. Mohlenbrock, John W. Voigt
This booklet could be of specific curiosity to these interested in utilized fields of biology, similar to conservation, forestry, and wild existence. The southern twelve counties of Illinois, a complete of 4,355 sq. miles, include the realm lined during this e-book. it truly is a space during which either northern and southern vegetation specimens abound. a wide selection of plant species develop during this region, and approximately 2 hundred new vegetation now not previously pointed out with this region were incorporated within the listings. Especially invaluable to beginner botanists, the e-book is a crucial handbook in deciding on the crops that make up the local surroundings of this area. Seventy-seven illustrations relief in making a choice on and realizing the plant groups.
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Extra info for A flora of southern Illinois
Flowers hypogynous (Plate 2); pistil 1 (5-parted); stamens 5; leaves obcordate 77. Oxalidaceae 3. Pinnately compound leaves 10 10. Flowers irregular or nearly regular 11 11. Sepals and petals 5 75. Leguminosae 11. Sepals 2, petals 4 64. Fumariaceae 10. Flowers regular 12 12. Petals free 13 13. Flowers perigynous or perigynous with a free hypanthium (Plate 2) 14 Page 38 14. Fruit a follicle or dehiscent capsule of some authors in 74. Spiraeoideae Rosaceae 14. Fruit an achene or drupelets (achenes sometimes enclosed by hypanthium) of some authors in 74.
10 6 Terms relating to fern structure. 11 7 Grass structures. 64 8 Characteristics of selected grass tribes. 64 9 Inflorescences of genera Cyperaceae. 99 10 Structure of sedge flowers, fruits, and spikelets. 99 Page 1 A Flora of Southern Illinois Page 3 Introduction A Flora of Southern Illinois has been prepared for use by anyone having an interest in our native flora and who has had some introductory study of botany. The book will be of particular use to workers in the applied fields of biology, such as conservation, wildlife, forestry, and agriculture.
Leaves compound, or simple leaves that are lobed or deeply divided Section 14 Page 15 Key to Families Section 1: Non-Flowering Vascular Plants: Ferns And Allies 1. Stems leafy throughout; leaves narrow or oval, sessile and pointed1. Stems not leafy throughout; leaves, when present, whorled; stems grooved, jointed, and hollow4. Cones with two kinds of spores, these borne in different sporangia of the same cone; cones somewhat 4-angled; low growing plants2. Free floaters; leaves usually two-lobed; sporocarps in pairs beneath the stem9.
A flora of southern Illinois by Robert H. Mohlenbrock, John W. Voigt