A flora of southern Illinois by Robert H. Mohlenbrock, John W. Voigt PDF

By Robert H. Mohlenbrock, John W. Voigt

ISBN-10: 080930662X

ISBN-13: 9780809306626

This booklet should be of specific curiosity to these inter­ested in utilized fields of biology, reminiscent of conservation, forestry, and wild lifestyles. The southern twelve counties of Illinois, a complete of 4,355 sq. miles, include the world coated during this booklet. it's a space during which either northern and southern plant life specimens abound. a wide selection of plant species develop during this region, and approximately 2 hundred new crops now not previously pointed out with this sector were integrated within the listings. Especially useful to novice botanists, the ebook is a vital guide in making a choice on the crops that make up the local surroundings of this sector. Seventy-seven illustrations relief in picking out and knowing the plant groups.

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Example text

Cruciferae Page 39 23. Petals united, lobes 5; calyx lobes 5; stamens 5 26 26. Stigma capitate 129. Solanaceae 26. Stigma deeply bifid 125. Hydrophyllaceae 21. Flowers having an inferior ovary 27 27. Umbellate inflorescence 112. Umbelliferae 27.

In the specimens cited, abbreviations are used for the most frequent collectors; thus, BSWilliam M. Bailey and Julius R. Swayne, Page 11 McJohn McCree, VJohn W. Voigt, and MRobert H. Mohlenbrock. For most species, our records for the earliest and latest flowering dates are given. In completing this work the authors have collected extensively throughout the area during the past several years and have, in addition to their own collections, cited many specimens from other excellent collections in the Southern Illinois University herbarium.

Flowers smaller 5 5. Leaves mostly submerged; flowers on long slender scapes Vallisneria in 19. Hydrocharitaceae 5. Leaves emergent 6 6. Flowers on a spadix, enclosed by a spathe; leaves and rhizomes aromatic Acorus in 22. Araceae 6. Flowers in spikes; pistillate and staminate parts of spike contiguous or short-separated; pistillate part of spike thickest and lowermost; perianth of bristles; leaves and rootstocks not aromatic 14. Typhaceae 2. Leaves not elongate and narrow or no leaves present 7 7.

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A flora of southern Illinois by Robert H. Mohlenbrock, John W. Voigt


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