122 LIST OF CONTRIBUTORS. 



Meehan, Thomas. Continued. 



On the formation of bark and wood. P '70, 13 



Cross fertilization and the law of sex in Euphorbia. 



'70, 14 



On Rumex oblongifolius. P '70, 71 



— On fertilization of plants. P '70. 90 



— On fasciations. P '70, 91 



— On phyllotaxis. P '70, 102 



— On the flowers of Aralia spinosa L. and Hedera helix L. 

 P '70, 107 



— On a singular habit in Reduvius novenarius Say. P '70, 110 



— On the stipules of Magnolia and Liriodendron. P '70, 114 



— Notes on Silphium laciniatum L., the compass plant. P 

 '70, 117 



— On the exercise of direct force by plants. P 70, 125 



— Bud varieties. P '70, 128 



— On Madura aurantiaea. P '70, 132 



— On a pear presenting the external appearance of an apple. 

 P '71, 10 



— On Reduvius novenarius. P '71, 51 



— On Bouvardia leiantha and Deutzia gracilis. P '71, 52 



— On the fascicles of Pinus mitis and on Acer rub rum. P 



'71, 101 



— Morphology of carpellary scales in Larix. P '71, 106 



— On the flowers of Magnolia purpurea. P '71, 109 



— On Ambrosia a-rtemisiaefolia. P '71, 110 



— On the buds of Fraxinus quadrangulata. P '71, 110 



— On the growing force of plants, and on the shape of cotyle- 

 dons. P '71, 116 



— On the stigma of Torenia asiatica and the tendrils of Cissus 

 amazoniea. P '71, 118 



— On the cotyledons of Quercus. P '71, 155 



— On bud scales and involucral bracts. P '71. 245 



— ■ On the angular divergence in the branches of plants. P 

 '71, 295 



— On the seeds of Hamamelis virginica. P '71, 295 



— On the effects of girdling. P '72, 10 



— On numerical order in the branching of some Coniferae. 

 P '72, 33 



— - On the axial origin of so-called pine needles. P '72, 123 



— On inherent growth force, and on variations in Quercus 



donglassii. P '72, 125 



