432 The American Naturalist. [May, 
name was proposed (1817). In the following list the name accepted 
by Sudworth appears first, while the name which is still commonly 
used in the manuals is placed within brackets. 
- Pinus radiata Don., Monterey Pine (P. insignis Doug].) 
Pinus attenuata Lemmon, Knobcone Pine (P. tuberculata Gordon). 
Pinus virginiana Mill., Serub Pine (P. inops Solander). 
Pinus echinata Mill., Shortleaf Pine (P. mitis Michx.). 
Pinus divaricata (Ait.) Gordon, Jack Pine (P. banksiana Lambert). 
Picea canadensis (Mill.) B.S. P., White Spruce (P. alba Link.). 
Pseudotsuga taxifolia (Poir.) Britton, Douglas Spruce (P. douglasii 
Link.). 
Sequoia washingtoniana (W insl.) Sadek, Bigtree (S. gigantea De- 
caisne). 
Chamaecyparis thyoides (L.) B. S. P., White Cedar (C. sphaeroidea 
Spach). 
Chamaecyparis nootkatensis (Lamb.) Spach, Yellow Cedar (C. nut- 
kaensis Spac 
Chamaecyparis lawsoniana (Murr.) Parl., Port Orford Cedar ( Cu- 
pressus lawsoniana Murr.). 
Tumion taxifolium (Arn.) Greene, Florida Torreya (Torreya taxi- 
folia Arnott). 
Tumion californicum (Torr.) Greene, California Torreya (Torreya 
californica Torr.) 
Hicoria laciniosa (Michx. f.) Sargent, Shellbark Hickory (H. sul- 
cata (Willd.) Britton. 
Salix fluviatilis Nutt., Sandbar Willow (S. longifolia Muehl.). 
Salix bebbiana Sargent, Bebb Willow (S. rostrata Rich.). 
Populus deltoides Marsh., Cottonwood (P. monilifera Aiton). 
Fagus latifolia (Muenchh.) Loudon, Beech (F. ferruginea Aiton). 
Castanea dentata (Marsh.) Borkh., Chestnut (O. vesca americana 
Michx.). 
Quercus minor (Marsh.) Sargent, Post Oak (Q. obtusiloba Michx.). 
Quercus plantanoides (Lam.) Sudworth, Swamp White Oak (Q. bi- 
color Willd.). 
Quercus virginiana Mill., Live Oak (Q. virens Aiton). 
Quercus velutina Lam., Yellow Oak (Q. tinctoria Bartram). 
Quercus digitata (Marsh.) Sudworth, Spanish Oak (Q. falcata 
Michx.). 
Quercus pumila (Marsh.) Sudworth, Bear Oak (Q. ilicifolia Wang.)- 
Quercus marilandica Muenchh., Black Jack (Q. nigra Wang.). 
Quercus nigra L., Water Oak (Q. aquatica Walter). 
