Trebouxia sp. 1 T. cf. anticipata T. cf. gelatinosa T. cf. aggregata The " Martian " flora: new collections of vascular plants, lichens, fungi, algae, and cyanobacteria from the Mars Desert Research Station, Utah Sokoloff, Paul C. Freebury, Colin E. Hamilton, Paul B. Saarela, Jeffery M. Biodiversity Data Journal 2016 4 8176 8176 Trebouxiophyceae Trebouxiaceae Trebouxia CoL Plantae Trebouxia sp. 1 Trebouxiales 0 8176 Chlorophyta species sp. 1   Trebouxia sp. 1[ T. cf. anticipataAhm./ T. cf. gelatinosaAhm./ T. cf. aggregata(Arch.) Gaertner]  Materials  Type status: Other material. Occurrence: recordNumber: 249; recordedBy: Sokoloff, Paul C.; Taxon: kingdom: Plantae; phylum: Chlorophyta; class: Trebouxiophyceae; order: Trebouxiales; family: Trebouxiaceae; genus: Trebouxia; Location: continent: North America; country: United States of America; countryCode: USA; stateProvince: Utah; county: Wayne County; municipality: Hanksville; locality: Mars Desert Research Station; verbatimLocality: Vicinity of the Mars Desert Research Station, Hanksville, Utah, 500 m radius of "hab"; verbatimElevation: 1371 m; verbatimLatitude: 38°24'23.2"N; verbatimLongitude: 110°47'31.1"W; coordinateUncertaintyInMeters: 50; Identification: identifiedBy: Hamilton, Paul B.; dateIdentified: 2016; Event: verbatimEventDate: November 17, 2014; habitat: Sandstone; Record Level: institutionID: CMN; collectionID: CANA 117864; collectionCode: CANA, UTC; basisOfRecord: Dried Specimen  Notes Cells spherical to weakly elliptical, 8-15.0 μmin diameter (Fig. 4 a-c; Fig. 6 a). In culture cells were spherical, up to 19 μmin diameter, the cell wall sheath <0.5 μm. Chloroplast plate-like, sometimes lobed, covering most of the cell. One pyrenoid present, at times difficult to distinguish. In the natural population the cell wall sheath was thick, up to 1.5 μm. Colonies of daughter cells tightly packed, forming wedge-shaped colonies in spherical to elliptical clusters. Endolithic, forming a fine linear layer (flake-like) 0.1-0.4 mm below surface of sandstone. 2014-11-17 CANA, UTC Sokoloff, Paul C. United States of America 38.406445 Mars Desert Research Station 1 -110.79197 0 8176 1 Other material