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|Jepson eFlora: Taxon page
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|Family: Ophioglossaceae||View Description||Dichotomous Key|
|Genus: Botrychium||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Botrychium tunux Stensvold & Farrar
Leaf: sporophore, trophophore joined generally proximal to mid-leaf; trophophore stalk 0--3 mm, blade 1-pinnate, generally 0.8--1.5 cm, 0.6--1 cm wide, ovate to oblong, pinnae 2--4 pairs, not overlapping, obovate to round, without sharp angle between side and outer margin, thick, shiny, yellow green, outer margin entire to shallowly cleft, side margins nearly parallel to meeting at an angle of 90° sporophore 1-pinnate, deltate, branches spreading to slightly ascending, proximal branches often downturned, stalk 0.5 to 1 × trophophore; spores 38--42 µm in longest diam. Chromosomes: 2n=90.
Ecology: Well-drained, rocky meadows; Elevation: 3600 m. Bioregional Distribution: c SNH (Mount Hoffman, Mariposa Co.); Distribution Outside California: to Alaska, Colorado, southern Nevada. Note: S United States plants small, not developing morphology typical of sp. in northern habitats.
eFlora Treatment Author: Donald R. Farrar
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory
Previous taxon: Botrychium simplex var. simplex
Next taxon: Botrychium yaaxudakeit
Citation for this treatment: Donald R. Farrar 2016. Botrychium tunux, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=91732, accessed on July 27, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on July 27, 2016.