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Quercus seemannii | |
Author | Liebmann 1854 Overs. Kongel.
Danske Vidensk. Selsk. Forh. Medlemmers Arbeider 1854: 188 Diagnosis here |
Synonyms | boquetensis Standl. 1940 borucasana Trel. 1924 (A. Camus n° 323) Diagnosis here citrifolia Liebm. 1854 Diagnosis here eugeniifolia Liebm. 1854 Diagnosis here eugeniifolia f. petiolata Trel. 1924 flagellifera Trel. 1924 Diagnosis here granulata Liebm. 1854, nom. illeg. not Raf. 1838 Diagnosis here petiolata (Trel.) A.E. Murray 1983 nom. illeg. pittieri Wesm. ex Seem. 1904, nom. illeg. nudum salicifolia var. seemannii Wenz. 1884 |
Local names | |
Range | Costa Rica; Panama; Mexico (Hidalgo, Puebla, Veracruz); 1400-2400 m; |
Growth habit | reaches 30 m tall; |
Leaves | 6-10 (-15) cm x 1.5-3.5 cm; 5 to 6 times longer than wide; leathery; lanceolate to narrowly elliptical; apex acuminate, aristate; base cuneate or attenuate, seldom rounded; margin revolute, minutely crispate, entire; adaxially glossy, green without any shade of blue-green, hairless except sometimes a very scattered stellate pubescence at base of midrib; abaxially hairless except sometimes some stellate trichomes at base; 12-15 vein pairs, smooth or remotely raised above, prominent beneath, at an angle of 70-80° with the midrib, and connected each other before reaching the margin; petiole 2-6 mm long, glabrescent. |
Flowers | male catkins 4 cm long, with lax flowers; |
Fruits | acorn subglobose, 1.1 cm long x 0.9 cm wide, solitary on a glabrous, 3-8 mm long peduncle; enclosed 1/4 by cup; cup 5 mm high, 7-11 mm wide, with broadly ovate scales; maturing in 1 year; |
Bark, twigs and |
twig 1.5-2.5 mm thick, more or less tomentose, glabrescent, with inconspicuous lenticels; bud 3-4 mm long, elongated, pointed, brown, hairless; stipules soon deciduous. |
Hardiness zone, habitat | |
Miscellaneous | -- A. Camus n°
362; -- Sub-genus Quercus, section Lobatae, Series Erythromexicanae, Group Eugeniifoliae; -- see HERE to compare with other whole-leaved oaks |
Subspecies and varieties |
-- Q. tonduzii
Seemen 1904 Bull. Herb. Boissier II, 4: 656 (A. Camus n° 324)
Diagnosis here = Q. seemannii var. or subsp. tonduzii (Seem.) A.E. Murray 1983 differs from Q. seemannii in having a floccose pubescence both sides of the young leaf, especially abaxially, soon deciduous; also the leaves are shorter (10 cm long maximum), the margin is wavy, and the angle between lateral veins and midrib is less open; unique range in Costa Rica, on the slopes of the Poas volcano; this taxon is very close to Q. seemannii (identical ??); Burger (1977) considers Q. seemannii as a complex, regarding its great variability, which includes probably Q. tonduzii and Q.gulielmitreleasei. |
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