334 



NATURAL HISTORY OF PLANTS. 



genus Cistus. In Huckonia' there is, with the same perianth and 

 androceum as in Cistus, three carpels and three placentas ; but upon 

 each of these only two ovules, similar to those of Helianthemum. 

 This small genus contains three species, 2 of North America, with 

 frutescent or subfrutc scent stem, small alternate imbricated leaves, 

 analogous to those of the heather (Fr., Bruyere), and small yellow 

 ilowers, terminal, solitary, pedunculate, near together on small gem- 



Lechea mexicana. 



Fig. 350. 

 Long. sect, of flower (^). 



Fig. 349. 



Floriferous branch. 



Fig. 351. 



Flower with perianth 



taken away. 



miform branches. Zee/tea 3 has only trimerous flowers, sometimes 

 dimorphous, apetalous, with few stamens, an ovary with biovulate 

 placentas, and a style with three stigmatiferous fimbriate divisions. 

 The four or five known species 4 are also of North America, herba- 

 ceous or suffrutescent, with flowers disposed in racemes of cymes or 



1 L., ManHss , n. 1263. — J., Gen., 162. — 

 GjEETN. f., Fruct., iii. 152, t. 407. — L\mk., III. 

 t. 407.— Dttn., in DC, Frodr., i. 284.— Spach, 

 loc. cit., 372 ; Suit, a Buffon, vi. 113. — Endl., 

 Gen., n. 5031. — A Gray, Gen. III., t. 90. — 

 B. H., Gen., 114, n. 3. 



2 A. Gray, Man., ed. 5, 81.— Chapm., Fl. 

 S. Unit. St., 36.— Walp., Rep., i. 213. 



3 L., Gen., n. 109.— J., Gen., 303.— G^ertn., 

 Fruct., ii. 222, t. 129.— DC, Frodr., i. 285.— 



Spach, loc. cit., 371. — Endl., Gen., n. 5030. — 

 Payer, Fam. Nat., 146. — A. Gray, Gen. III., 

 t. 88, 89. — B. H., Gen., 114, n. 4. — Lechidium 

 Spach, in Ann. Sc. Nat., ser. 2, vi. 372. 



4 Lame., III., t. 281, fig. 3 {Gaura).—A. 

 Gray, Man., ed. 5, 81. — Tokr. & Gray, Fl. 

 N.-Amer., i. 152.— Chapm., Fl. S. Unit. St., 

 36. — Spach, in Comp. to JBot. Mag., ii. 282, 

 286 —Walp., Sep., i. 212 ; v. 58 b. 



