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Specimen number RSA318281
Determination Lemna valdiviana
More information: Jepson Online Interchange
Collector, number, date Wayne P. Armstrong, 1221, 1984-8-28
Verbatim date 1984-08-28
County San Luis Obispo
Locality North shore of Oso Flaco Lake
Elevation 6m
HabitatFreshwater marsh plant community.
Coordinates 35.03000 -120.61750 BerkeleyMapper [or without layers, here]
DatumNAD83; ER = 2.0 km
Coordinate sourceTerrain Nav. v. 8.7 (copied from SBBG25525)
Voucher information
other label numbers2d88c09f-057a-43b1-a9e8-ea4e9e41ac68
verbatim elevation20
NotesHerb. In shade of Scirpus californicus, Sparganium eurycarpum and Potentilla egedii. Mixed with Lemna minuscula, L. gibba, Wolffia columbiana and Azolla filiculoides.At least some of the Lemna in this collection appear to be L. valdiviana:1. Oval-oblong fronds adhering in colonies of 2-6.2. Fronds very thin and transparent.3. Single prominent nerve extending at least 3/4 of distance from node to apex.4. Apices of fronds turned slightly upward in water.5. Fronds compare favorably with Landolt s clone #ZT 7546 sent to me from Zurich.Fronds not or only slightly asymmetrical at base.;

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  2. county=San Luis Obispo; taxon=Lemna valdiviana
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  5. collector=Armstrong; number=1221
  6. collector=Armstrong; number=1221; include nearby numbers
  7. date=1984-08-28; collector=Armstrong
  8. date=1984-08-28; county=San Luis Obispo
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