By Robert H. Mohlenbrock, John W. Voigt
This publication can be of specific curiosity to these interested in utilized fields of biology, resembling conservation, forestry, and wild lifestyles. The southern twelve counties of Illinois, a complete of 4,355 sq. miles, contain the realm coated during this e-book. it really is a space within which either northern and southern plants specimens abound. a wide selection of plant species develop during this quarter, and approximately 2 hundred new vegetation no longer previously pointed out with this sector were integrated within the listings. Especially worthy to beginner botanists, the e-book is a vital handbook in settling on the vegetation that make up the local surroundings of this sector. Seventy-seven illustrations relief in picking out and realizing the plant groups.
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Additional info for A flora of southern Illinois
4 2 Ovary positionthe fundamental types. 5 3 Inflorescence types. 7 4 Leaf shapes. 9 5 Leaf margins, tips, and bases. 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.
Illecebraceae 7. Stems and branches not forking; flowers axillary; calyx 5-parted; plants prostrate Mollugo in 50. Aizoaceae 1. Plants with opposite leaves (upper leaves alternate in Asclepias tuberosa) 8 8. Plants with milky sap (sap clear in A tuberosa) 9 9. Flowers apetalous; ovary 3-parted 84. Euphorbiaceae Page 29 9. Flowers with petals and sepals 10 10. Ovary 2-parted, forming a twin follicle fruit; flowers without a corona 10. Ovary 2-parted, forming a single several-seeded follicle; flowers with a corona 8.
In running streams a sedge (Carex torta) is a characteristic though not too common species. Along sandy shores two grasses commonly present are Eragrostis hypnoides and Leptoloma filiformis. Winged Pigweed (Cycloloma atriplicifolia) may also occasionally be found in these sandy areas. ). Hill Prairies Atop some of the limestone river bluffs are isolated remnants of prairie. These small relict areas are minute replicas of prairies to the west. Characteristic species include Little Bluestem (Andropogon scoparius), Big Bluestem (Andropogon gerardi), Side-oats Grama (Bouteloua curtipendula), False Boneset (Kuhnia eupatorioides), Blazing Star (Liatris cylindracea), Purple Prairie Clover (Petalostemum purpureum), and White Prairie Clover (Petalostemum candidum).