GENUS 3. 



2. Malus baccata (L.) Borck. Siberian 

 Crab Apple. Fig. 2322. 



Pynis baccata L. Mant. i : 75. 1767. 



Malus baccata Borck. Handb. Forstbot. 2: 1280. 

 1800-1803. 



A small tree, up to 30 high. Leaves glabrous, 

 ovate to ovate-oblong, 2-4 long, acuminate at 

 the apex, rounded or narrowed at the base, ser- 

 rate, rather firm in texture; flowers clustered, 

 on slender pedicels, about 12' broad; petals oblong 

 to obovate, narrowed at the base ; fruit globose, 

 about i' in diameter, yellow or reddish; calyx- 

 lobes glabrous or nearly so, deciduous. 



Escaped from cultivation and spontaneous, Maine 

 to Connecticut. Native of Europe and Asia. May. 



2. Malus glaucescens Rehder. American 

 Crab Apple. Fig. 2323. 



Malus glaucescens Rehder, Trees and Shrubs 2: 139. 

 1911. 



A small tree, sometimes reaching a height of 25 

 and trunk diameter of 12'. Leaves petioled, ovate 

 to triangular-ovate, sparingly pubescent beneath 

 along the veins when young, glabrous when old, 

 sharply serrate and on sterile shoots, often somewhat 

 lobed, obtuse, acute or acutish at the apex, rounded 

 or cordate at the base, i'-3' long; flowers rose- 

 colored, very fragrant, i'-2 f broad ; pedicels 6"-i8" 

 long; calyx glabrous or pubescent, its lobes some- 

 what persistent on the pome ; pome fleshy, -globose or 

 depressed, i'-ii' in diameter, greenish-yellow, fra- 

 grant, very acid. 



In thickets, Ontario to Michigan, south to New Jer- 

 sey, South Carolina. Iowa and Missouri. Wood soft, red- 

 dish brown ; weight per cubic foot 44 Ibs. Wild or 

 fragrant crab. Sweet-scented crab. April-May. Fruit 

 ripe Sept. Long mistaken for M. coronaria. Consists of 

 several races, or may include more than one species. 



3. Malus ioensis (Wood) Britton. 

 Western Crab Apple. Fig. 2324. 



Pyi'ns coronaria var. ioensis Wood, Class-book, 



333- 1860. 



Pynis ioensis Carruth, Trans. Kans. Acad. Sci. 

 , 5: 48. 1877. 

 . Malus loensis Britton, in Britt. & Brown, 111. Fl. 



2:235. 1897. 



A small tree, resembling Malus glaucescens. 

 Leaves simple, firm, white-pubescent beneath, 

 at length glabrous above, obtuse at the apex, 

 mostly narrowed at the base, ovate, oval or 

 oblong, dentate, crenate or with a few rounded 

 lobes, i '-2' long, or on young shoots much 

 larger; petioles and calyx pubescent, i'-ii' 

 long; flowers much like those of M. glau- 

 cescens; pedicels villous-pubescent, slender, 

 i -i$' long; calyx-lobes persistent on the 

 pome. 



Minnesota, Wisconsin and Illinois to Ken- 

 tucky, Louisiana, Nebraska and Oklahoma. Iowa 

 crab. April-May. 



Malus Soulardi (Bailey) Britton, admitted as 

 a species in our first edition, has been shown to 

 be a hybrid between this and Malus Mains. 



