167 
MALACEZ. Tue Appie FaAmity. 
The trees of this family that occur in our area have simple, alter- 
nate leaves; perfect, regular flowers, 5-merous calyx and corolla; 
fruit a more or less fleshy pome. 
Flowers in racemes, cavities of mature fruit twice as 
many as the styles, seeds less than 4 mm. (1% inch) 
{WOVE 5 BS en Re RENER CE EERIE see Serco Ret PAA AR 2 Amelanchier. 
Flowers in cymes or corymbs, cavities of mature fruit 
as many as the styles, seeds more than 4 mm. (1% 
inch) long. 
Fruit green, mature carpels papery..................--: 1 Malus. 
Fruit red, orange, blue, black or yellow, mature carp- 
GIIS) LOCGVSIN Ree eatee tte is sicker i > eRe Te caer ae tere 3 Crataegus. 
1. MALUS.* Tue Apptes. 
There are two marked forms of Malus coronaria. One of these 
has recently been segregated by Mr. Alfred Rehder as Malus glau- 
cescens. The Indiana tree is intermediate between these two types 
as to most of the material seen; and at present it seems best to 
consider it one species. 
Malus augustifolia has been reported from Indiana; but it is a 
southern species which I have seen no farther north than Cairo, 
Illinois. 
The narrow-leaved form of Malus coronaria and also Malus doen- 
sis resemble augustifolia in leaf-outlne and might easily be mis- 
taken for it. 
Leaves and petioles glabrous or only slightly pubescent; 
calyx lobes tomentose inside only; fruit depressed- 
tlobose wereenish-yelloww.20 ta. 6.4 alee eee ech ws 1 M. coronaria. 
Leaves (at least the lower surfaces) and petioles densely 
tomentose; calyx lobes densely tomentose on both 
Sides mruliesubeglobose;oreen:.. ... 2) 44.6%. ease oe 2 M. ioensis. 
1. Malus coronaria (Linnzus) Miller. Crap Appia. (MM. glau- 
cescens Rehder). Plates 76 and 77. Bark reddish, fissured and 
scaly; leaves on glandless petioles, petioles usually 2-4 em. (34-14% 
inches) long, leaves narrow ovate to almost triangular, those on the 
lateral branchlets of the ovate type, those of the terminal branch- 
lets and vigorous shoots of the triangular type, 3-8 em. (114-3 inches) 
long, acute at the apex, mostly rounded or somewhat cordate at the 
*Contributed by W. W. Eggleston, Bureau of Plant Industry, Washington, D. C. 
