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Recently the number of species within the
Arceuthobium has been reduced from 42 to 26.
[1] The structure of the subgenera and sections follows
Nickrent et al. (2004)
[1] who resolved the
phylogeny of the
genus using
nuclear
ribosomal
internal transcribed spacer (ITS) sequences and
chloroplast trnT-L-F sequences.
Much of the work in Arceuthobium systematics was undertaken and compiled by
Hawksworth and
Wiens
[2]
Subgenus Arceuthobium
Section Arceuthobium
Section Chinense
Nickrent
Section Azorica
Subgenus Vaginata
Section Americana
Nickrent
Section Penda Nickrent
Section Globosa Nickrent
Arceuthobium globosum D. Hawksw. & Wiens including: A. globosum subsp. grandicaule D. Hawksw. & Wiens , A. aureum D. Hawksw. & Wiens subsp. aureum , A. aureum subsp. petersonii D. Hawksw. & Wiens
Section Pusilla Nickrent
Section Rubra D. Hawksw. & Wiens
Section Vaginata D. Hawksw. & Wiens
This section has the broadest range of host species, parasitizing 20 species of
Pinus .
[1]
Section Minuta D. Hawksw. & Wiens
Section Campylopoda D. Hawksw. & Wiens
Arceuthobium blumeri A. Nelson
Arceuthobium campylopodum Engelm. including:
Arceuthobium abietinum D. Hawksw. & Wiens ,
Arceuthobium apachecum D. Hawksw. & Wiens , A. californicum D. Hawksw. & Wiens , A. cyanocarpum (A. Nelson ex Rydberg) Coulter & Nelson , A. laricis (Piper) St. John ,
Arceuthobium littorum D. Hawksw., Wiens &
Nickrent ,
Arceuthobium microcarpum (Engelm.) Hawksworth & Wiens ,
Arceuthobium monticola D. Hawksw., Wiens &
Nickrent , A. occidentale Engelm. ,
Arceuthobium siskiyouense D. Hawksw., Wiens &
Nickrent , A. tsugense (Rosendahl) G.N. Jones (Parasite hosts include
Larix occidentalis ,
Tsuga mertensiana ,
T. heterophylla ,
Pinus contorta ,
Abies grandis and
Picea engelmannii )
[2]
References