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Analipus japonicus

(Harvey) M.J. Wynne

Key Characteristics

  • Clusters of cylindrical branches with short, radially arranged laterals
  • Laterals often curved, sometimes flattened or inflated
  • Arising from a sometimes extensive bumpy, moderately adherent, crust

Image Gallery (click for more)

Database links

UC specimens and range limits for Analipus japonicus

  • Blue markers: specimen records
  • Yellow marker: type locality, if present
  • Red markers: endpoints of range from literature

View map from the Consortium of Pacific Northwest Herbaria

Notes: Broadly distributed in the north Pacific from Japan to Point Conception, Santa Barbara Co., California. Relatively few collections from Washington, except the San Juan Islands.

Status: This common species has been confirmed by molecular studies from Boiler Bay, Oregon (Cho et al. 2003, 2004); Bodega Bay (Silberfeld et al. 2010), Pigeon Point Lighthouse, San Mateo Co., Sea Lion Point, Point Lobos State Reserve, Monterey Co., Soberanes Point, Monterey Co., and Santa Cruz, California (Saunders 2014).

Habitat: In sites exposed to moderate wave action, in upper to mid-intertidal

Life History: Alternation of isomorphic phases, although only plurilocular plants are present throughout much of its distribution, suggesting that the gametes may not fuse but act as spores to recycle the gametophytic phase (Nakahara 1984; Nelson 1982b; Wynne 1972b). Annual erect thalli arising from perennial crustose base in March at all latitudes; unilocular plants rare, known only from Monterey Co. (Nelson and DeWreede 1989).

Search Sequences in GenBank

Analipus Kjellman 1889

Thallus perennial, with a number of main erect axes arising from profusely branched, rhizomatous, persistent base. Erect axes percurrent, densely clothed on all sides with unbranched laterals of limited growth. Medulla of longitudinally elongate, colorless cells, surrounded by inner cortex of shorter colorless cells and outer cortex of short, anticlinal rows of pigmented cells. Chloroplasts discoid, many per cell, without pyrenoid. Unangia and plurangia on separate plants of similar size and structure; unangia at base of cortical filaments among scattered hairs; plurangia pluriseriate, intercalary in middle and lower parts of cortical filaments.

Analipus japonicus (Harv.) Wynne

Halosaccion (Halocoelia) japonica Harvey 1857: 331. Analipus japonicus (Harv.) Wynne 1971: 172. Chordaria abietina Farlow 1875: 357. Heterochordaria abietina (Farl.) Setchell & Gardner 1924b: 6; 1925: 550.

Thallus dark brown to tan; base crustose to 5 cm broad; erect branches to 35 cm tall; determinate lateral branches cylindrical to distinctly flattened, commonly curved, to 30 mm long; axis and branches at first solid, later becoming hollow; erect axes disappearing in late fall, new axes arising from perennial base the following spring.

Frequent to common on upper intertidal rocks in areas exposed to moderately heavy wave action, Alaska to Pt. Conception, Calif. Type locality: Japan.

Excerpt from Abbott, I. A., & Hollenberg, G. J. (1976). Marine algae of California. Stanford University Press, Stanford, California. xii [xiii] + 827 pp., 701 figs.

Classification: Algaebase


Vertical Distribution: Upper to mid-intertidal

Frequency: Common

Substrate: Rock

Type locality: Hakodate, Japan

Specimen Gallery (click for more)

Copyright © 2018 Regents of the University of California
Citation for this page: Analipus japonicus, in Kathy Ann Miller (ed.), 2018 California Seaweeds eFlora, [accessed on October 21, 2018]
Citation for the whole website: Kathy Ann Miller (ed.) 2018. California Seaweeds eFlora, [accessed on October 21, 2018].

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