List of Arceuthobium species

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) 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]

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Species of Arceuthobium

Subgenus Arceuthobium

Section Arceuthobium

• A. juniperi-procerae Chiovenda (Parasite of Juniperus)^[1]
• A. oxycedri (DC) Bieb. (Parasite of Juniperus)^[1]
• A. tibetense H.S. Kiu & W. Ren (Parasite of Abies forrestii)^[1]

Section Chinense Nickrent

• A. chinense Lecomte
• A. minutissimum J.D: Hooker
• A. sicuanense (H.S. Kiu) Hawksw. & Wiens
• A. pini Hawksw. & Wiens

Section Azorica

• A. azoricum (Parasite of Juniperus brevifolia)^[1]

Subgenus Vaginata

Section Americana Nickrent

• A. abietis-religiosae Hiel
• A. americanum Nutt. Ex Engelm. (Parasite of Pinus banksiana, P. contorta var. latifolia and P. contorta var. murrayana)^[1]
• A. verticilliflorum Engelm. (The only species lacking explosive seed dehiscence)^[1]

Section Penda Nickrent

• A. guatemalense Hawksw. & Wiens (Parasite of Pinus ayacahuite. Also the most endangered Arceuthobium due to extensive logging in Guatemala)^[1]
• A. pendens Hawksw. & Wiens (Parasite of piñyon pines)^[1]

Section Globosa Nickrent

• A. globosum Hawksw. & Wiens including: A. globosum subsp. grandicaule Hawksw. & Wiens, A. aureum Hawksw. & Wiens subsp. aureum, A. aureum subsp. petersonii Hawksw. & Wiens

Section Pusilla Nickrent

• A. bicarinatum Urban.
• A. pusillum Peck.

Section Rubra Hawksw. & Wiens

• A. gillii Hawksw. & Wiens including: A. nigrum Hawksw. & Wiens
• A. rubrum Hawksw. & Wiens including: A. oaxacanum Hawksw. & Wiens
• A. yecorense Hawksw. & Wiens

Section Vaginata Hawksw. & Wiens

This section has the broadest range of host species, parasitizing 20 species of Pinus^[1].

• A. hondurense Hawksw. & Wiens including: A. hawksworthii Wiens & Shaw
• A. strictum Hawksw. & Wiens
• A. vaginatum (Willd.) Presl. including: A. vaginatum subsp. cryptopodum (Engelm.) Hawksw. & Wiens, A. durangense (Engelm.) Hawksw. & Wiens

Section Minuta Hawksw. & Wiens

• A. divaricatum Engelm. (Parasite of piñyon pines)^[1]
• A. douglasii Engelm. (Parasite of Pseudotsuga menziesii, occasionally Abies grandis and Picea engelmannii)^[2]

Section Campylopoda Hawksw. & Wiens

• A. blumeri A. Nelson
• A. campylopodum Engelm. including: A. abietinum Hawksw. & Wiens, A. apachecum Hawksw. & Wiens, A. californicum Hawksw. & Wiens, A. cyanocarpum (A. Nelson ex Rydberg) Coulter & Nelson, A. laricis (Piper) St. John, A. littorum Hawksw., Wiens & Nickrent, A. microcarpum (Engelm.) Hawksworth & Wiens, A. monticola Hawksw., Wiens & Nickrent, A. occidentale Engelm., A. siskiyouense 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

• PLANTS profile for Arceuthobium (United States) including range maps.