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Dendrological Atlas Project

Sample Plates

One of the key features of the Dendrological Atlas is the full-plate illustrations showing the species in their habitats. We can only show a few sample plates here, selected to show a variety of species and habitats. The sample plates are shown here are intended to give a general idea of how the information in the Dendrological Atlas will be presented. They do not necessarily show the final layout and content.

Click on the small image of the plate to display the full size plate. Note: Pinus yecorensis and Pinus maximartinezii full size plates are linked to bark and seed information. The Juniperus squamata sample plate does not have  bark and seed links but shows the tree in its habitat.

	Conifer Habitats: East Asia/Taiwan Juniperus squamata D. Don Hsueh Shan, Taiwan Formerly considered a separate species (Juniperus morrisonicola), this juniper appears above 3,000m. and is dominant from 3,500m upward. It is present just 4m. below the actual peak of the highest mountain in Taiwan, the Y¸-shan/Mount Morrison/Niitakayama 3.95m. Peculiar in this habitat is the simultaneous presence of the creeping and the upright forms of the species at 3500-3550m.
	Pinus yecorensis Debreczy & R·cz Sonora, Mexico Five needled diploxylon pine, found in our third expedition to Mexico in 1993/94 in a little-explored area of Sonora at 1800m. Unique species with sparse and strong branches and long, flexible, shiny green needles, from a distance much resembling P. michoacana with, however, very different cones, more similar to P. pseudostrobus but with thicker and stiff cone-scales. It is restricted to the YÈcora area in Sonora, associating with P. herrerai, Arbutus arizonica, A. glandulosa, Quercus candicans, Qu. coccolobaefolia, Qu. magnoliifolia, Prunus serotina (ssp. capuli), Rhammus betulaefolia etc. Other conifers found in the closer region: P. leiophylla var. chihuahuana, P. engelmannii, Pinus lumholtzi, P. maiminoi, P. oocarpa.
	Pinus maximartinezii Rzedowski Zacatecas, Mexico Five-needled haploxylon pinyon pine. Prof. Jerry Rzedowski (then at the Insituto Politecnico Ciudad de Mexico) first saw the seeds of this pine sold in a local food market and soon found the species (new to science) on the higher slopes of the Sierra Morones, above the village of Pueblo Viejo near the town called Juchipilia in 1963. Interestingly enough, this pine is closely related to the Himalayan (three-needled) P. gerardiana. It has the largest seed of all pines, and the largest cone of all "edulis" (Paracembra) pines and the third heaviest cones in the genus, after P. coulteri and P. sabiniana.