California Polypody
Polypodium californicum
Summary 7
Polypodium californicum is a species of fern known by the common name California polypody.
Description 8
Stems dull or inconspicuously glaucous, moderately stout, to 10 mm diam., acrid or bland-tasting; scales uniformly brown or slightly darker near point of attachment, lanceolate-ovate, symmetric, margins entire to erose. Leaves to 70 cm. Petiole usually slender, to 3 mm diam. Blade deltate to lanceolate-ovate, pinnatifid, usually widest near base, to 20 cm wide, leathery to herbaceous; rachis sparsely scaly to glabrescent abaxially, puberulent adaxially; scales deltate to ovate, usually more than 10 cells wide. Segments linear-lanceolate to oblong, usually less than 15 mm wide; margins serrate; apex widely obtuse to rarely attenuate; midrib puberulent adaxially. Venation weakly to conspicuously anastomosing, most segments containing several areoles, often forming 1 row. Sori midway between margin and midrib or slightly closer to midrib, usually less than 3 mm diam., oval when immature. Sporangiasters absent. Spores less than 58 µm, verrucose, with surface projections to 3 µm. 2 n = 74.
Sources and Credits
- (c) dogtooth77, some rights reserved (CC BY-NC-SA), http://www.flickr.com/photos/53817483@N00/3230083580
- (c) 2006 Doug Fischer, some rights reserved (CC BY-NC), http://calphotos.berkeley.edu/cgi/img_query?seq_num=181347&one=T
- (c) 2006 Doug Fischer, some rights reserved (CC BY-NC), http://calphotos.berkeley.edu/cgi/img_query?seq_num=181348&one=T
- (c) 1998 California Academy of Sciences, some rights reserved (CC BY-NC-SA), http://calphotos.berkeley.edu/cgi/img_query?seq_num=17415&one=T
- (c) 1998 California Academy of Sciences, some rights reserved (CC BY-NC-SA), http://calphotos.berkeley.edu/cgi/img_query?seq_num=17414&one=T
- (c) 1998 California Academy of Sciences, some rights reserved (CC BY-NC-SA), http://calphotos.berkeley.edu/cgi/img_query?seq_num=17417&one=T
- (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Polypodium_californicum
- (c) Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/5008659
More Info
- iNat taxon page
- Biodiversity Heritage Library
- BOLD Systems BIN search
- Calflora
- CalPhotos
- eFloras.org
- Flora of North America (beta)
- Global Biodiversity Information Facility (GBIF)
- HOSTS - a Database of the World's Lepidopteran Hostplants
- IPNI (with links to POWO, WFO, and BHL)
- Jepson eFlora
- NatureServe Explorer 2.0
- SEINet Symbiota portals
- Tropicos
- USDA PLANTS database
- World Flora Online
