 | Pinus yunnanensis Franchet 1899Common NamesYunnan pine (2).Taxonomic notesSyn: P. insularis var. yunnanensis (Franch.) Silba 1984; P. yunnanensis var. tenuifolia Cheng & Law 1975; P. insularis var. tenuifolia (Cheng & Law) Silba 1990 (1); P. tabulaeformis var. yunnanensis (Franchet) Shaw (2). Closely related species in subsection Pinus include: P. tabuliformis (adjunct range to N), P. kesiya (adjunct range to S) (3), and (via cpDNA data) P. hwangshanensis, P. taiwanensis and P. thunbergii (4).DescriptionTree:Bark: Branches: Shoots: Can grow to the exceptional length of 35 cm in one season. Leaves: In fascicles of 2-3, 15-20(30) cm long. Cones: 3-7[10] cm long, light brown, situated laterally in groups of 2-5, erect on short peduncles, opening in the second summer of growth. Cone scales: Purplish-brown on the inside. Apophysis keeled, ending in a short prickle on the umbo (2). Pollen cones: Seeds: Wood: Similar species: RangeChina: predominantly at 600-3000 m elevation on the high plateaus of Yunnan (1), but extending N into Sichuan, where it intergrades with P. tabuliformis, and S into N Burma, where it intergrades with P. kesiya. In recent times it has extended its range as competing broadleaf forests are logged (1, 2, 3).Big TreeOldestDendrochronologyEthnobotanyObservationsRemarksCitations(1) Li 1997.(2) Farjon 1984. (3) Richardson & Rundel 1998. (4) Price et al. 1998. |
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