256 ORDER XXXn. — TERNSTRCEMIACE^E. 



mens usually not less than 10; filaments dilated at the base. 

 Ovary several-celled, composed of several carpels. Style 1, cy- 

 lindrical. Fruit pulpy, 1 or more celled, with a thick rind, 

 containing receptacles of volatile oil. Seed* anatropous, raphe 

 distinct. Trees or shrubs. 



Genus I. — LIMOXIA. L. 10 — 1. (Lime, Lemon, and Orange) 

 (From Umoun, the Arabic name of the fruit.) 



Calyx 4 — 5-cleft, urceolate. Petals 4 — 5. Stamens 8 — 18. 

 Filaments subulate. Anthers cordate, receptacle elevated. Fruit 

 4 — 5-celled, or by abortion fewer. 



1. L. Acmis'snrA, (L.) Leaves pinnate ; leaflets roundish-oval, cre- 

 nate ; spines geminate. Flowers odorous. Fruit yellowish, about the 

 size of a nutmeg. Pulp very acid, flesh-colored. — Florida. 



Genus II.— CITRUS. L. 10—1. (Kitria, lemon-tree.) 



Calyx 5-cleft. Petals 5, oblong. Filaments dilated at the 

 base, in several parcels. Fruit 9— 18-celled. 



1. C. med'ica, (L.) Leaves ovate, acuminate, with linear petioles, not 

 ■winged. — Asia. Citron. 



2. C. limo'num, (L.) Leaves oblong, acute. Stamens 25 — 35. Styles 

 usually wanting. Fruit yellow, with a thin rind, very sour. — Asia. 



Lemon. 



3. C. auran'tium, (L.) Leaves oval-oblong. Stamens about 20. Fruit 

 globose, with sweet pulp. — Asia. Orange. 



Order XXXIL— TERXSTRCEMLA'CE^. Mirb. 



Sepals 5, deciduous, concave, coriaceous, aestivation imbri- 

 cate. Petals 5, united at the base, alternate with the sepals. 

 Stamens numerous, monadelphous, generally adhering to the 

 base of the petals. Ovary 5-celled, situated on a flattened to- 

 rus. Placenta central. Styles 5 or 6, distinct or united. Fruit 

 6 or 6 celled ; capsule baccate, or coriaceous and indehiscent. 

 Seeds anatropous or campylotropous, large. Embryo straight 

 or curved. Trees or shrubs. Leaves alternate, without stipules. 

 Flower* large and showy. 



Genus I.— GORDO'NIA. Ellis. 15—12. 

 (In honor of Gordon, a London nurseryman.) 



Sepals 5, coria< us, broad, ovate, or nearly round, imbri- 

 cate. Petals 6, unite. 1 n( the base. Styles 5, united, forming 

 a five-angled column. Capsule ligneous, 5-celled, 5-valved, with 

 2 winged Beeds in each cell. 



1. G. lasian'thus, (L.) A large tree, with light, coarsegrained, ma- 



