Sample #5: Aneura
pinguis
Figure 1: live sample of Aneura pinguis thallose structures on rock; for observational referencehttps://www.bing.com/images/search?q=aneura+pinguis&FORM=HDRSC2
Figure 2: dried sample of Aneura pinguis thallose structures; dried and reanimated with water
Figure 3: possible male antheridia forming in thallose
Figure 4: Close up view of thallose surface; division-less and pore-less
Phylum: Bryophyta
Family: Aneuraceae
Collection Date: 15 September, 2016
Collector: Kristen Maslach
Habitat: areas of constant moisture, near streams
Location: soil on back of a creek, Nelson’s Ledgres, Ohio
Description: small thallus ribbons; green, fade to deep purple
when dry; no visible divisions on surface; no visible gemmae cups; no division or
pores on thallose surface
Key Used: Sam Bosanquet et. al. Thallose Liverworts (and hornworts). In Field Key to Commoner and/or Distinctive
Mosses and Liverworts. http://rbg-web2.rbge.org.uk/bbs/Activities/BBS%20Field%20Guide%20Field%20Key.pdf
Steps in Keying: pages 22-23
Thallose
liverwort
5) No gemmae
in receptacles
8) No
markings or pores in upper thallus
11)
Plants deep or vivid green
15)
Thallus section more than 3mm wide
19) no
defined midrib
23)
Greasy appearance with margins curved upward
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