PA eT ar say 
Rosaceae. Rose Family. 
Herbs, shrubs or trees with alternate usually stipulate entire oF fs ; 
compound leaves. Flowers regular, mostly perfect, solitary,in racemes, | aad 
corymbs or umbels. Calyx 4, 8, or 5-parted, the sepals frequently alter= ie 
nating with an equal mmber of sepal-like appendages, the calyx-tube vary- : 
ing from saucer-shaped or flat to urn-shaped and contracted at the throat. 
Stamens 2, 4, 5, 10 or numerous, commonly seated on the margin of the e 
calyx-tube. Pistils l-many, wholly superior or partly or wholly inferior. 
Fruit various, dry or fleshy, dehiscent or indehiscent, & olust er of small — 
pods or achenes, 4 drupe, or an accessory fruit formed either of “clus ge 
of small drupelets (as in the bleo Nero achenes seated upon a fleshy: 
receptacle (as in the strawberry), a peme (as in the apple) or of a 
enclosed within an urn-shaped receptacle (as in the rose). vie 
seltettttenneee tier ee tte ee: fire = ees 
FO a . = ee a od 6 eae ee 
vO A CA wher 7 * =, PO ee re errr. eke WS 
oO Calyx S-parted, often with 5fadditional sepal- 
4 like appendages; stamens Sgumerous; petals 5 
« Each flower containing 1 superior Ppistil bearing — 
G a single style; fruit a cherry (or~Deupacese ) f. 8 
4% Bach flower containing 1 inferior pistil bearing 
6 2-5 styles; fruit a small apple-like pome ; Pe 
4 Leaves pinnately compound 2. Sorbus 
4 Leaves simple 
6 Branches armed with stout thorns; fruit 
/o with 1-5 chambers 3. Crataegus 
¢ Branches unarmed; fruit with 10 chambers 4. Amelanchier 
—_— 
2 Hach flower containing 2-5 or numerous pistils; 
fruit an equivalent mmber of small pods, 
b achenes or a cluster of drupelets as in the 
blackberry : 
stn 4% 
4 Shrubs with simple/ leaves but Amite Gtad hegwrg 
G Fruit like a raspberry; leaves 10-30 cme broad jo, Rubus 
© Fruit dry, consisting of 2-5 smal] pods; 
/O leaves less than 10 om. broad 
6 Leaves palmately lobed, subrotund; . x Physocarpus 
£5 Leaves pinnately lobed or merely toothed, 
) fe, ovate, oval or oblong, not rotund 4 ait: 
[ 
/o Leaves glabrous, or at most thinly hairy 
14 < on the veins beneath; ovules several in 
gach ovary @ Spiraea 
