BI 450 algae with descritions

Acrosiphonia

Branches in rope-like bundles, filamentous, Irregular branching

Cladophora

Looks like moss filamentous branching, irregular

Ulva taeniata

green spiral twisted blade

Urospora

unbranched cylindriccal filaments, haplodiplontic, rhizoidal holdfast high intertidal

codium setchelii

spongy, crustose, dark green, diplontic, mid to low intertidal

Codium fragile

“dead man fingers” spongy cylindrical, dichotomous branching

Colpomenia

air filled sac, crustose holdfast, haplodiplontic, parenchymatous

Phaeostrophion

Irregular blade small stipe, no branching

Ralfsia

brown, crustose holdfast, no branching, filamentous tissue

Scytosiphon

thin brown filaments, tubular, discoid holdfast, haplodiplontic, microscopic tuffted hairs, no branching

Analipus japonicus

brown-green filaments, can be branched or unbranched, crustose holdfast

Desmarestia

fern-like, flattened brown algae with alternate branching. “acid weed”, haplodiplontic, psuedoparenchymatous, discoid holdfast

Fucus distichus

flattened rock weed dichotomous branching, discoid holdfast, midrib present, diplontic, males are more red with receptacles with conceptacles, mid to high intertidal

Pelvetiopsis

Terete rock weeds, dichotomous branching, no midrib, discoid holdfast, diplontic, receptacles with conceptacles, high intertidal

Alaria

ruffled edges, pronouced midrib, lateral sporophylls on mature stipes, low intertidal

Egregia

stipe present, Midrib absent, multiple floats, hapterous holdfast, haplodiploonticwith elongated fronds

Laminaria setchellii

unbranched, long, stiff stipe, can stand upright via stipe, hapterous holdfast, low intertidal

Laminaria sinclairii

long, thin, flexible stipe, smooth unsplit blade, rhizomatous holdfast with clones, low intertidal

Hedophyllum

bullate or smooth blades, no stipe, densely packed, hapterous holdfast, mid-high intertidal, “sea cabbage”

Nereocystis

long stiff stipe with large float at top, 4-5 ribbon-like blades comming off secondary stipes on top of float, haperous holdfast, subtidal, “Bull whip kelp”

Microcladia

feathery filaments, alternate branching, uniaxial meristem, rhizoid holdfast, epiphytic

Gloiosiphonia

filamentous, branched whorled, discoid holdfast, haplodiplontic

Ptilota

reddish brown, opposite branching (large leading branch/small lagging branch) rhizomatous holdfast, pinnate branching, fern like/ serrated, found low on rocks

Callithamnion

monosiphonous, filamentous, alternate-to- irregular dense branching, bark brown to black, crustose

Polysiphonia hendrii

red/brown, small filaments, pectinate, uniaxial meristem, radial branching, unicellular rhizoid holdfasts, 1 tetrasporangia per segment, cystocarps

Plocamium

red to violet brown, tufts with pinnate branching, looks like trees, discoid holdfast, apical meristem, low intertidal

cryptosiphonia woodii

Brownish in color, soft and fine like hair, not dichotomous, discoid, uniaxial

endocladia

looks like a tumble weed, spiny stipe, brown, discoid holdfast, apical meristem, dichotomous branching

Odonthalia

delicate, distichous branching can be alternate or irregular, discoid holdfast

Ahnfeltiopsis

thicker rigid red-brown branches with lighter yellow tips, red stick with yellow tips, dichotomous branching, apical meristem, crustose holdfast, psammophilic, low intertidal

Neorhodomela

brown rope or wire brsh, radial/sprial branching, crustose holdfast, very common

Osmundea

flat, firm blades, discoid holdfast, smells like pepper when you crush it, low intertidal

cryptopleura

flattened brown blades, may have macroscopic veins or none, slightly transparent blades, very lobate, smooth, shiny

opuntiella

thick, rounded, sheet-like blades, stipe present, blades posses faint vertical veins, discoid holdfast, triphasic

polyneura

blade with veins, discoid holdfast, triphasic

callophyllis

small thalli, irregular/dichotoums branching, no midrib or veins, discoid holdfast, triphetic

delesseria

Linear blades in cluster, veins diagonal to midrib, epilithic, discoid holdfast, branching typically alternate, low to subtidal

Farlowia mollis

distichous, alternate branching, discoid holdfast, Branches soft and slippery, no midribs or veins

Prionitis

smells like bleach, pyramidal shape due to pinnate proliferation of branches, found in all zones with differing morphologies

Halosaccion

Tublar thallus, small pores for water retention, ovular sacs, discoid holdfast, unbranched stipe, clustered, epilithic/phytic

Constantinea

thick circular blade (grows out of blade, may have multiple “cups”) attached to unbranched stipe, filamentous medulla, discoid holdfast, low intertidal mermaid cups

Halymenia schizymenioides

single lancerated blade, pit plugs present, discoid holdfast, triphasic

Smithora naiadum

dark red to purple to reddish brown, cushion shaped, discoid holdfast, PIT PLUGS ABSENT, triphasic

Chondracanthus

oblong, lance-like blade, very bummpy papillae, discoid holdfast, low intertidal with high wave exposure “turkish towel”

Pyropia

sheet-like irregular blade, 1-2 cells thick, brown/green/redd sheets, pseudopararenchymatous, no pit lugs, discoid holdfast, high intertidal, epilithic, oftern proliferate, PIT PLUGS ABSENT

mastocarpus

discoid holdfast, triphasic, irregular branches, dark green to purple

mazzaella flaccida

broad, irregular blade, soft texture, discoid holdfast, little iredescent shine, yellow- green

mazzaella parksii

high intertidal, irregular blade, discoid holdfast, dark green, often has a soft texture,

mazzaella splendans

very irediscent, smooth blade, discoid holdfast, brown, low intertidal

bossiella

irregular pennate/ dichotomous branching, intergenicula look like wingnut, crustose holdfast, triphasic

calliarthron

irregular branching, rectangle intergenicula crustose holdfast, calcified appearance, found in intertidal zones.

Lithothrix

round beads for intergenicul, calcareous algae, crustose, irregular branching, triphasic

Corallina officinalis

pinnate branching, crustose holdfast, flat, triphastic

Corallina vancouveriensis

dense pinnate branching giving bushy look, doesn’t lay flat, crustose holdfast, triphasic

Phyllospadix torrei

surfgrass with toothless leaves, 1 main vein in the leaf, tube shape base

Phyllospadix scouleri

surfgrass with elongated, leaves 3 main veins, diplontic, rhizoidal holdfast

Phyllospadix serratulatus

surfgrass with serrated leaf margins, 5-7 main veins in the leaf, diplontic, rhizoidal holdfast.

zostera japonica

thin three vein grass, invasive, diplontic, rhizoidal holdfast

zostera marina

thick long leaves, diplontic rhizoidal holdfast

Ahnfeltia

dichotomausly branched, purple-black, wiryy tough texture, multiaxial pit plugs present, discoid holdfast