68 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



smaller. The only trees measured, two of rather exceptional size, were 

 3^ and 4^ feet in circumference, with trunks 30 feet clear. The total 

 height of the first (a standing tree) was estimated at CO feet; the latter 

 (prostrate, and measured with tape-line) was 50 feet long. 

 Blossoms in April or May, and commences to leaf about April 20. 



35. (119?) Nyssa multifloraf "Black Gum." 



A very abundant tree both on uplands and in the bottoms. Grows tall 

 and slender, with few large branches except at the extreme summit, but 

 the trunk frequently thickly set with small horizontal branches to near 

 the ground, thus closely approximating the "excurrent" growth charac- 

 teristic of many Conifercc. Growing on thin or dry soils, its height does 

 not usually much exceed 70 or 80 feet, but on rich lands an elevation of 

 100 to 120 feet or more is sometimes reached, one specimen being 125 

 feet long, 13 feet in circumference, and the trunk entirely free from 

 branches for 64 feet. An exceptionally large specimen, which may pos- 

 sibly have been N. imiflora, growing in the bottoms of Posey County, 

 Indiana (but not in water), was 18 feet in circumference, and propor- 

 tionately tall. 



It may be that some of our so called "Black Gums" may be iV. syl- 

 ratica, but of this I am not certain. 



Begins to leaf May 1. 



36. (123.) Viburnum Jentago. Sweet Viburnum; Sheep Berry. 

 "Dry, open wood, scarce." (Dr. Schneck.) '^o measurements. 



37. (124.) Viburnum prunifolium. Black Haw. 



Very abundant on rich lands. Blossoms in April or May. Ko meas- 

 urements have been taken, but no specimens exceeding 25 feet in height 

 have been observed. 



38. ( .) Viburnum dentatum. Arrow- wood. 



"I have seen but one tree. May, June." (Schneck.) 

 Begins to leaf the last week in March, and blooms about the 10th of 

 April. 



39. (143.) Diospyros virginiana. Persimmon. 



Common everywhere. When growing in the thick bottom -forest is 

 frequently 100 feet or more in height, the tallest specimen measured 

 being 115 feet high, 80 feet to the first limb, but only 5^ feet in girth at 

 the base, or less than 2 feet in diameter! When growing in open fields 

 or along roadsides (where it is most frequently seen), it forms a more 

 spreading tree, usually 30 to 40, and rarely more than 50, feet high. 



40. (148.) Fraxinus americana. White Ash. 



Very common in the bottom lands, where it becomes one of the very 

 tallest trees, an altitude of 140 feet being not uncommon, while clear 

 trunks of 60 to 90 feet are occasionally met with. When growing in 



