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Larix laricina (Du Roi) K. Koch
AMERICAN LARCH
Tamarack; Eastern larch; Black larch; Red larch; Eastern tamarack; Hackmatack

Life   Plantae   Gymnospermae   Pinaceae   Larix

Larix laricina, pollen
© Copyright UDEL Pollen 2014 · 1
Larix laricina, pollen

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Associates · map
FamilyScientific name @ source (records)
Auriculariaceae  Auricularia auricula @ BPI (2)
Biatorellaceae  Biatorella resinae @ BPI (1)
Corticiaceae  Corticium galactinum @ BPI (2)

Corticium giganteum @ BPI (1)
Dacrymycetaceae  Dacrymyces palmatus @ BPI (1)
Helotiaceae  Durella @ BPI (1)

Tympanis laricina @ BPI (2)
Hyaloscyphaceae  Dasyscyphus calycinus @ BPI (69)

Dasyscyphus oblongosporus @ BPI (20)

Dasyscyphus occidentalis @ BPI (17)

Dasyscyphus resinarius @ BPI (4)

Dasyscyphus willkommii @ BPI (2)

Dasyscyphus @ BPI (3)

Lachnellula hahniana @ BPI (1)

Lachnellula willkommii @ BPI (4)

Lachnellula @ BPI (1)
Hymenochaetaceae  Polystictus aurantiacus @ BPI (1)
Hyponectriaceae  Physalospora laricis @ BPI (1)
Margarodidae  Icerya purchasi @ CSCA_TCN (1)
Melampsoraceae  Melampsora bigelowii @ BPI (10)

Melampsora medusae @ BPI (16)

Melampsora paradoxa @ BPI (9)
Miridae  Atractotomus magnicornis @ AMNH_PBI (1)

Ceratocapsus luteus @ AMNH_IZC (3)

Ceratocapsus modestus @ AMNH_PBI (1)

Pilophorus piceicola @ AMNH_PBI (2)

Pilophorus uhleri @ AMNH_PBI (5)

Plagiognathus laricicola @ AMNH_PBI (3)

Plagiognathus suffuscipennis @ AMNH_PBI (1)
Mytilinidiaceae  Mytilinidion resinicola @ BPI (2)
Nectriaceae  Nectria cucurbitula @ BPI (1)
Polyporaceae  Fomes carneus @ BPI (2)

Fomes pini @ BPI (11)

Fomes pinicola @ BPI (5)

Fomes roseus @ BPI (1)

Lenzites saepiaria @ BPI (4)

Polyporus abietinus @ BPI (10)

Polyporus fumosus @ BPI (1)

Polyporus pargamenus @ BPI (1)

Polyporus schweinitzii @ BPI (4)

Polyporus versicolor @ BPI (1)

Poria rixosa @ BPI (1)

Poria subacida @ BPI (4)

Trametes heteromorpha @ BPI (1)

Trametes odorata @ BPI (1)

Trametes subrosea @ BPI (1)

Trametes tenuis @ BPI (1)
Pucciniastraceae  Melampsoridium betulinum @ BPI (7)
Reduviidae  Rhynocoris @ AMNH_PBI (1)
Rhytismataceae  Hypodermella laricis @ BPI (3)

Lophodermium laricinum @ BPI (3)
Stereaceae  Aleurodiscus weirii @ BPI (1)

Stereum sanguinolentum @ BPI (2)
Tremellaceae  Tremella mesenterica @ BPI (1)
Valsaceae  Valsa abietis @ BPI (1)

Valsa pini @ BPI (1)

Valsa @ BPI (1)
_  Sclerophoma @ BPI (1)

Sirococcus conigenus @ BPI (3)

Trichoscyphella hahniana @ BPI (1)

Trichoscyphella willkommii @ BPI (1)

Zythia resinae @ BPI (1)

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1. Larix laricina (Du Roi) K. Koch, Dendrologie. 2(2): 263. 1873.

Tamarack, mélèze laricin

Pinus laricina DuRoi, Diss. Observ. Bot., 49. 1771; Larix alaskensis W.Wight; L . laricina var. alaskensis (W.Wight) Raup

Trees to 20m; trunk to 0.6m diam.; crown narrow, branches sparse. Bark of young trees gray, smooth, becoming reddish brown and scaly, inner layer red-purple. Branches horizontal or slightly ascending; twigs orange-brown, glabrous. Buds dark red, subtended by ring of hairlike bracts, glabrous. Leaves of short shoots 1--2cm × 0.5--0.8mm, 0.3--0.5mm thick, keeled abaxially, rounded adaxially, pale blue-green; resin canals 10--20µm from margins. Seed cones 1--2 × 0.5--1cm, usually on curved stalks 2--5 × 2--2.5mm, sometimes sessile on long shoots; scales 10--30, margins entire, brown-strigose to -tomentose at base; bracts mucronate or tipped by awn to 1mm, hidden by mature scales, at first dark red to violet, later turning yellow-brown. Pollen 53--65µm diam. Seeds with bodies 2--3mm, wings 4--6mm. 2 n =24.

Boreal forests in wet, poorly drained sphagnum bogs and muskegs, also on moist upland mineral soils; 0--1200m; St. Pierre and Miquelon; Alta., B.C., Man., N.B., Nfld., N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon; Alaska, Conn., Ill., Ind., Maine, Md., Mass., Mich., Minn., N.H., N.J., N.Y., Ohio, Pa., R.I., Vt., W.Va., Wis.

Disjunct Alaskan populations of Larix laricina , originally described as Larix alaskensis on the basis of narrower cone scales and bracts, are indistinguishable from other populations of the species.

The wood of tamarack is used for railway ties, pilings, and posts; it formerly was used for boat construction. Slow-growing trees develop wood with high resin content, making it decay resistant but limiting its value for pulpwood. The bark contains a tannin, which has been used for tanning leather. Although tamarack is the most rapidly growing boreal conifer under favorable conditions, it is of little commercial interest because of insect and disease problems and its poor pulping properties. Plants of this species are often stunted in the far north and on mountain slopes.

Updated: 2024-05-22 20:20:48 gmt
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