The Project Gutenberg EBook of The Genus Pinus, by George Russell Shaw

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Title: The Genus Pinus

Author: George Russell Shaw

Illustrator: George Russell Shaw

Release Date: October 7, 2008 [EBook #26798]

Language: English

Character set encoding: ASCII

*** START OF THIS PROJECT GUTENBERG EBOOK THE GENUS PINUS ***

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THE GENUS PINUS

PUBLICATIONS OF THE ARNOLD ARBORETUM No. 5

THE

GENUS PINUS

BY

GEORGE RUSSELL SHAW

[Illustration: Printer's Logo.]

Es giebt jedoch auch Arten--und dieses ist
fuer den Systematiker wie fuer den Physiologen
gleich wichtig--welche sich den wechselnden
Bedingungen der Feuchtigkeit so vollkommen
anpassen, dass ihre extremen Formen zu
ungleichen Arten zu gehoeren scheinen.

_Schimper._

CAMBRIDGE
PRINTED AT THE RIVERSIDE PRESS
1914

REPRINTED 1958 BY THE MURRAY PRINTING COMPANY
FORGE VILLAGE, MASSACHUSETTS

CONTENTS

Page Plate

PART 1 CHARACTERS OF THE GENUS 1

Cotyledon, Primary Leaf, Bud and Branchlet 1, 2 I

Secondary Leaves 2 II

External Characters 4

Internal Characters 4

Flowers and Conelet 7 III

Cone 8 IV

Phyllotaxis 12 V

Cone-tis