

Index to American botanical literature 



589 



[Gibson, H. H.] American forest trees — 31. Longleaf yellow pine, 

 Pirns pa ktstris Mill. Hardwood Record 2 1": 14,15. 10 Ap 1906.' 



[Illust.] 



[Gibson, H. H.] American forest trees — 32. Bull pine, Arizona 

 white pine, California pine, Pinus ponderosa Laws. Hardwood Rec- 

 ord 22' : 14,15. 25 Ap 1906. [Illust] 



[Gibson, H. H.] American forest trees — 33. Hackberry, Celtis 

 occidentals Linn. Hardwood Record 22 2 : 14, 15. 10 Mv 1006 

 [Illust.] J 



[Gibson, H. H.] American forest trees — 34. Water elm, Planera 

 aquatica Gmel. Hardwood Record 22" : 14, 15. 25 My 1906. 

 [Illust.] 



[Gibson, H. H.] American forest trees — 35. Black or yellow-bark 

 oak, Quercus ve/utina Lam., Quercus tinctoria Bart. Hardwood Rec- 

 ord 22 4 : 14, 15. 10 Je 1906. [Illust.] 



[Gibson, H. H.] American forest trees— 36. Norway or red pine, 



Pinus resinosa Ait. Hardwood Record 22 10 : 16, 17. 10 S 1906 

 [Illust.] 



[Gibson, H. H.] American forest trees — 37. Mahogany, Swietenia 

 Mahogani, Khaya senegalensis, Sayenida febrifuga. Hardwood Rec- 

 ord 22" : 15, 16. 25 S 1906. [Illust.] 



[Gibson, H. H.] American forest trees — 38. Chestnut oak, Quercus 

 Prinus Linn. Hardwood Record 22. 12 : 16, 17. 10 O 1906 

 [Illust.] 



[Gibson, H. H.] American forest trees — 39. Cucumber tree, Mag- 

 nolia acuminata Linn. Hardwood Record 23 1 : 16, 17. 25 O 1906 

 [Illust.] 



[Gibson, H. H.] American forest trees — 40. Black locust, Robinia 

 Pseudacacia L. Hardwood Record 23 s : 16, 17. 10 N 1906. 

 [Illust.] 



[Gibson, H. H.] American forest trees — 41 . American or gray elm, 

 Ulmus atnericana Linn. Hardwood Record 23 s : 16, 17. 25 N 

 1906. [Illust.] 



[Gibson, H. H.] American forest trees — 42. Overcup oak, Quercus 

 Ara/a Walt. Hardwood Record 23 s : 16, 17. 10 D 1906. [Illust.] 



[Gibson, H. H.] American forest trees — 43. Red or river birch, 



Betula nigra Linn. Hardwood Record 23": 16, 17. 25 1 1 1906. 

 [Illust.] 



Glaziou, A. F. M. Plantae Brasiliae centralis a Glaziou lectae. Mem. 

 Soc. Bot. France 3 : 113-200. Jl 1906. 



