DIY History | Transcribe | Scholarship at Iowa | A brief description of nine species of Hepaticae found in the vicinity of Iowa City by Mary F. Linder, 1886 | A brief description of nine species of Hepaticae found in the vicinity of Iowa City by Mary F. Linder, 1886, Page 41

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A brief description of nine species of Hepaticae found in the vicinity of Iowa City by Mary F. Linder, 1886

A brief description of nine species of Hepaticae found in the vicinity of Iowa City by Mary F. Linder, 1886, Page 41

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[page]39.[/page] ground, and the peduncles and fruit-caps wither and decay. About this time the plant begins to make provisions for next years fruit and the antheridia and archegonia begin to form on new shoots of the season. This species resembles M. polymorpha but its fronds are much coarser and more brittle and sometimes attain a length of five to six inches. A vertical section of the frond PL.XI. fig. 1. shows a similar arrangement of tissue. The ventral epidermal structure is a single layer of simple colorless cells from which root hairs arise. Above this is a layer of larger cells whose walls are marked by abundant reticulating thickenings which extend vertically around their inner surfaces. In the upper portion of