قراءة كتاب Michigan Trees A Handbook of the Native and Most Important Introduced Species

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‏اللغة: English

Michigan Trees A Handbook of the Native and Most Important Introduced Species

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المؤلف:

Otis Charles Herbert

دار النشر: Project Gutenberg

الصفحة رقم: 10

armed with stout spines; leaflets 3/4 - 1-1/2 inches long.

GLEDITSIA, p. 165. dd. Trunk and large branches unarmed; leaflets 2 - 2-1/2 inches long. GYMNOCLADUS, p. 163. bb. Leaves opposite. c. Leaves pinnately compound; fruit a samara. d. Leaflets 3-5; samaras paired. ACER, p. 172. dd. Leaflets 7-11, exceptionally 5; samaras not paired. FRAXINUS, p. 210. cc. Leaves digitately compound; fruit a prickly bur. AESCULUS, p. 194.