60 SILVA OF NORTH AMERICA. ROSACER, 
in diameter ; the calyx is prominent, with a short tube, a deep broad cavity, and usually erect lobes 
which often fall before the fruit ripens; the flesh is thin, yellow, dry, and mealy. The nutlets, which 
are generally three in number, are prominently ridged and grooved on the back and about a quarter of 
an inch long. 
Crategus Mohri is distributed from western Georgia to central Alabama and Mississippi,’ and 
northward to middle Tennessee. Attaining its largest size in the low flat woods of central Alabama, 
where it is often very abundant, it also ascends into the poorer and drier soil of hillsides and low 
mountain slopes. This handsome tree will help to keep green the name of Charles Mohr, the student 
of the flora of Alabama. 
blotches,” but at Birmingham, Alabama, where I first saw this tree Mohri was Dr. A. W. Chapman, as there is in his herbarium pre- 
on October 5, 1898, the fruit is bright orange-red. served at Biltmore a specimen of this species labeled Crategus Crus- 
1 A specimen of Crategus Mohri was collected at Columbus, gall: collected at Rome, Georgia, without date or name of collector, 
Mississippi, by Dr. Charles Mohr in November, 1893. He had but no doubt gathered by Chapman himself previous to 1890 dur- 
previously collected it in the Lookout Mountain region of north- ing one of his visits to Rome. 
eastern Alabama, but probably the earliest collector of Crataegus 
EXPLANATION OF THE PLATE. 
PiateE DCXLVII. Crataaus Moust. 
A flowering branch, natural size. 
. A flower before the expansion of the petals, natural size. 
- Vertical section of a flower with the petals removed, natural size. 
. A fruiting branch, natural size. 
. Cross section of a fruit showing the nutlets, natural size. 
. Vertical section of a fruit, natural size. 
. A nutlet, side view, enlarged. 
COND TP wD 
. A nutlet, front view, enlarged. 
