256 ORDER XXXII. —TERNSTRCEMI ACE jE. 



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. Seeds anatropous, raphe 

 distinct. Trees or shrubs. 



Genus I. — LIMO'NIA. L. 10 — 1. (Lime, Lemon, and Orange.) 

 (From limoun, 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. acidis'sima, (L.) Leaves pinnate ; leaflets roundish-oval, ere 

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

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



Genus IL— CIT'RUS. 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 XXXII.— TERNSTRCEMIA'CEJS. 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 

 5 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. 

 Flowers large and showy. 



Genus I.— GORDO'NIA: Ellis. 15—12. 

 (In honor of Gordon, a London nurseryman.) 



Sepals 5, coriaceous, broad, ovate, or nearly round, imbri 

 cate. Petals 5, united at the base. Styles 5, united, forming 

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

 2 winged seeds in each cell. 



1. G. lasian'thus, (L.) A large tree, with light, coarse-grained, m&* 



