CLASS XII. ORDERS II akd V. 55 



sessile. 36. 92 — fiersica, (peach) leaves serrate, 

 flowers solitary, sessile. Ij . r. e. A variety, necta- 

 ritia, has glabrous fruit. 



* Ly thrum. 



FROM ORDER II. DYGINIA, TO ORDER V. PENTA- 



GTNIA. 



Crataegus. Calyx superior, 5-cleft : petals 5 : 

 styles generally 3 or 5 : berry mealy : seeds 2 to 5, 

 bony. 36. 92.— cocrmd-a, (thorn bush) leaves heart- 

 ovate, petioles and calyx glandular. I2 • w. — corda* 

 ta^ leaves heart-ovate, petioles and calyx without 

 glands. ^2 • vf '^-crus-gulli, leaves wedge-obovate, 

 styles 2. \i . w — oxyacantha^ (quick-set) leaves ob- 

 tuse, 3-cleft, styles 3. \i . 



Sorbus. Calyx 5-cleft, superior : petals 5 : 

 styles 2 to 3 : berry pomaceous : seeds 2 or 3 car- 

 tilaginous. 36. 92— aweyfciiwc, (mountain ash, or 

 service tree) corymbed, leaves pinnate, Icafets ser- 

 rate. \i . 



Aronia. Calyx 5-toothed : petals 5 : fruit 

 pomaceous : berry 5 or lO-celled ; cells 1 or 2-seed- 

 ed; seeds cartilaginous. 36. 92 — hotryafiium^ (shad- 

 flower) leaves oblong-oval cuspidate, flowers race- 

 med, petals linear. \, w. — ar^z/ri/b/ia, (ehoak-ber- 

 ry) corymbed ; leaves obovate crenate-serrate, 

 midrib glandular above, ^i . w — ovalis^ leaves round- 

 oval, flowers racemed, petals obovate, ciliate. 12 . 

 These species were formerly arranged under the 

 genus fiyrus. 



Mespilus. Calyx 5-cleft, superior, divisions 

 generally foliaceous : corol 5-petalled : styles 2- 



5 : drupe or berry with from 2 to 5 bony seeds 



36. 92 — fiyracantha^ (medlar, or evergreen thorn) 

 thorny, leaves lance-ovate, crenate, calyx obtuse. ^2 . 

 ^^^ermanica} (common medlar) without thorns, k • 



F 



