28 NATURAL ORDERS AND 
definite, inserted with the petals into the calyx. Jilaments incurved 
in estivation. Anthers two celled, bursting lengthwise. Carpels 
numerous, sometimes by abortion solitary, sometimes having the ap- 
pearance of a single ovary from their union either together or with 
the tube of the calyx. Ovary one celled. Styles simple, mostly 
arising from the side of the ovary. /ruit either one seeded nuts or 
small drupes, or pomes or follicles containing several seeds. Seeds 
mostly one to two, erect, or suspended. mbryo straight, without, or 
with very little, albumen, and the cotyledons fleshy or foliaceous.— Her- 
baceous plants, shrubs, or trees. Leaves simple, or compound, alternate, 
with two stipules at their base. 
TRIBES, 
Corolla polypetalous. 
Fruit a solitary one or two seeded drupe 1. AMyGDALEs, 
Fruit a one to five celled pome ......... 2. PoMAcEm. 
Fruit baccate, composed of many nuts, 
surrounded by the fleshy calyx. 3. Rosacrm. 
Fruit numerous small nuts, inserted 
upon a dry or fleshy receptacle. 4. Dryaprem. 
Fruit formed of several one to six seeded 
follicles, spirally twisted ....... .. 5, SPIRMACEH. 
Corolla monopetalous, or wanting ......... 6. SANGUISORBEE. 
Trisz 1. AmycpaLem.—Dr Canp 
Drupe covered with bloom, stone com- 
PTESSEA ..ssseeseseeesseeeereeeeeeeeee PRUNUS, V. 2. p. 682. 
Drupe not covered with bloom, stone round Cxrasvus, vy. 2. p. 684. 
TrirE 2.—Pomacem®.—De Cann. 
Calyx segments foliaceous .........++++-+++5 MESPILUS, V. 2. p. 687. 
Calyx segments not foliaceous. 
Fruit open at the apeX......ssesseeeeees ... COTONEASTER, V. 2. p. 690. 
Fruit closed at the apex. 
Carpella hard, bony ......ssesseeeeees ... CRATEGUS, V. 2. p. 688. 
Carpella cartilaginous ................ Pyrus, v. 2. p. 691. 
Trise 3—Rosacea#.—Der Canp. 
Fruit consisting of numerous dry nuts, 
enclosed in the fleshy tube of the 
calyx, contracted at its orifice ...... Rosa, v. 2. p. 699. 
Triste 4. DryapE&.—VENT. 
Carpella numerous, on succulent recepta- 
cles. 
Calyx four or five-cleft, naked............ Rusus, v. 2. p. 719. 
Calyx four or five-cleft, bracteated ...... FRAGARIA, V. 2, p. 78% 
