: . - 74. Biges gracile. Developing bud. 
140 Trans. Acad. Sci. of St. Louis. 
EXPLANATION OF PLATES. 
1. Asimina triloba. Swelling lateral bud. 2. Terminal bud further ad- 
“vanced. 3. Cross section of bud with the two outer leaves removed. 
4, Menispermum Canadense. Three superposed buds, the upper having 
“de veloped into a branch. 5. Three buds, side view, the two upper 
having develop oc 6. Swelling bud. 7. Young branch. 8. One of 
the first leaves. 9. Leaf-scar and bud before hes er 
10. Tilia Americana. ice bud. 11. Bud further advanc 
12. Xanthoxylum Americanum. Lateral bud developing. 13. ten BP bud 
“further advanced. 
14. Celastrus scandens. Lateral bud developing. 
15. Huonymus atropurpureus. Two young lateral branches. 
16. Ceanothus Americanus. An outer scale. 17. An inner scale. 18. A 
young leaf. 
19. Vitis riparia. Swelling bud. —- Young branch with bud below. 
21. Cissus Ampelopsis. Young bra 
22, Ampelopsis quinquefolia. Saale bud. 23. Young branch with bud 
“below 
24. Agsculus arguta. Developing terminal bud. 
26. ses aceroides. Developing terminal bud. 27-30. Scales showing 
ransition to, 31, First leaf. 
82. staph trifolia. Two lateral buds developing. 33. Bud further de- 
veloped, inner pair of scales removed; side view, showing two young 
iver me their stipules. 84, Same, showing back of leaf. 
35-36. Rhus Toxicodendron. Buds in different stages of development. 
87. Rhus Canadensis. Swelling bud. 38. Developing bud. 39. Young leaf. 
40. Amorpha fruticosa. Developing bu 
- 41. Cercis cue te Developing bod. 42. Young branch. 
ladus Canadensis. Swelling bud. 44. Bud further developed. 
45. Young leaf. 
. @leditschia triacanthos. Base of petiole of young leaf showing minute 
stipule. 47. Developing bud, leaves cut off above the base. 48. 
Young leaf. 
49, Dejan t Chicasa. co bud. 50-52. Young leaves. 53. Glandu- 
ae 
lar serration 
54. Prunus Americana. pede oping bud. 55. Scale. 56. Inner scale of 
“young leaf. 57. Stipule of developed leaf. 58. Serration of leaf x 
125. 
59. Rubus occidentalis. Young leaf. 60. Developing bud. 61-63. Scales. 
64. Rubus villosus. Developing bud. 65. Young leaf. 66-68. Scales and 
outer leaf. 
69. Rosa Arkansana. Developing bud. 70. Young leaf. 
71. Crategus coccinea. Young branch, some of the scales at base having 
fallen off. 72-73. Two forms of stipules on ee ee ee 
