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| Figure 1: Lophocolea minor with sporophytes extending |
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| Figure 2: Detail of leaf morphologyof Lophocolea minor in upper left photo, with sporophytes extending, and with sporangia ready to extend from archegonium in perianth in lower right hand photo. Name: Lophocolea minor Nees Common name: Leafy liverwort Family: Lophocoleacae Collection Date: May 6, 2011 Habitat: Coarse woody debris in advanced stages of rotting in shade Location: Hiram College Field Station woods Description: Minute, green leafy liverwort with oval black/dark brown sporangia extending, sporangia continued to extend over 4 X as long over the next day. Gemmae were evident along leaf margins, leaves notched with 2 lobes, leaves arranged in two rows with a third row of underleaves (amphigastra), leaves succubous. Collector: Willa Schrlau Key used: Conard, H.S. and P.L. Redfearn, Jr. 1979. How to Know the Mosses and Liverworts 2nd Edition, McGraw-Hill, Boston, Mass. Keying Steps: Introduction Key pg. 19 1b.Plants with stems and leaves, the larger leaves in two rows on the stem and a third row of leaves...present, ...sporophyte short-lived.....4 4b. Plants ...leafy,....sporophyte with sphaerical or ellipsoidal capsule...5 5b. Plants slightly flattened, distinctly divided into stem and leaf....8 8b. Archegonia at the end of the thallus, terminating its further growth, with only one developing into a sporophyte, usually surrounded at the base by a perianth.....9 9a. Rhizoids present: ........pg 232 Order Jungermanniales Key to Families/Genera of Jungermanniales pg. 232 1b. Leaves ....toothed, or divided at tip into 2, 3 or 4 lobes....6 6b. Plants not as above;if bilobed, bifurcate vitta absent...7 7a. Leaves...succubous...8 8b. Leaves lobed or their margins with distinct teeth...16 16b. Leaves not complicate-bilobed...18 18b. Leaves succubously inserted....27 27a. Underleaves of sterile shoots present, .....28 28a. Rhizoids restricted to bases of underleaves, underleaves bifid....Lophocolea pg 250 Key to Family Lophocoleaceae - Genus Lophocolea 1a. Plants 0.6 - 1 mm wide;gemmae in yellow green masses on marigins of leaves and bracts; leaf margins irregular due to presence of gemmae.....Lophocolea minor Nees "Plants yellowish-green, in mats, on shaded rocks, steam banks, rotten logs, tree bases, Yukon to Ontario south to British Columbia, Columbia, Colorado, Arkansas, Illinois, Pennsylvania and Virginia." (Conrad and Redfearn, 1979) Links: http://plants.usda.gov/java/profile?symbol=LOMI7 http://wisplants.uwsp.edu/bryophytes/scripts/detail.asp?SpCode=LOPMIN http://export.nbii.gov/xml/natureserv/html/Lophocoleaceae/0/ELEMENT_GLOBAL_2_126088.html http://iphylo.org/~rpage/theplantlist/B/Balantiopsaceae/Lophocolea http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=14556 http://es.mirror.gbif.org/species/13725419 Liverwort Links: http://www.bio.umass.edu/biology/conn.river/liverwts.html http://www.bryoecol.mtu.edu/chapters/2-3Marchantiophyta.pdf http://university.uog.edu/botany/plant_di/marchantiophyta.htm http://www.eol.org/pages/6864901 <iframe width="425" height="349" src="https://www.youtube.com/embed/ALGDLzWcvnU" frameborder="0" allowfullscreen></iframe> <iframe width="560" height="349" src="https://www.youtube.com/embed/WeA-W9c6OAk" frameborder="0" allowfullscreen></iframe> |
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