Cryptantha excavata

Cryptantha excavata Brandegee

Bot. Gaz. 27: 452 (1899)

[Cryptantha HOME / INICIO]

Cryp-tán-tha  ex-ca-và-ta
"hollowed out," in reference to the nutlet attachment scar
None known

K. Brandegee s.n., April 1892, USA, California, Colusa County, Stites
   Holotype: UC79296
   Possible Fragment Isotype (kleptotype): RSA0001772

Jepson eFlora Treatment

Treatment from Johnston 1925: 74

Cryptantha excavata has a Calfornia Rare Plant Rank of 1B.1 in the CNPS Inventory.

Phylogenetic Relationships:
Cladograms from: Top, Simpson et al. 2017:1411, cpDNA results; Bottom, Mabry and Simpson 2018:64, Astral results.
In both results, Cryptantha excavata is sister to a clade including C. minima, C. kelseyana, C. fendleri, and C. recurvata.

Left: Kartesz, J.T., The Biota of North America Program (BONAP). 2012. North American Plant Atlas (
Y: Dark green=present in state; Light green=present in county, not rare. Accessed 6 Jan 2013.
Right: CCH2. Click to see live records.

K. Brandegee s.n., USA: California: Colusa County, Stites

Cryptantha excavata
Robert F. Hoover 11099, 27 May 1968 (RSA0184603=RSA216793)
United States, California, Colusa County, Bear Creek canyon N. of Highway 20 (near Wilbur Springs)
Habitat: On barren crumbled shale (not serpentine).
Description: Nutlet 1, minutely granulate and tuberculate. Small calyx, solitary roughened nutlet, and geographic position agree with C. excavata,
but nutlet is erect. However, Johnston says “nutlet usually horizontal,” so this may be the exception [on supplementary label].

Note hollowed out ("excavated") attachment scar, characteristic of this species.

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