CISTACE A. 339 
Herbs or undershrubs, often decumbent at base; leaves alternate or 
opposite, stipulate or exstipulate ; flowers cymose, usually 1-parous 
by abortion, in false racemes, or more rarely umbelliform (ÆZwrope, 
N. Africa and Western Islands, W. Asia, Temperate America, both Con- 
tinents). See p. 332. 
3. Hudsonia L.—Flowers nearly of Helianthemum ; petals 5, very 
fugacious. Stamens 3. Placentas 3, 2-ovulate. Capsule included 
in connivent calyx, 3-valved. Seeds 1 or few; embryo slender 
uncinate-cireinate.—Cæspitose undershrubs, or small shrubs (eri- 
coidal); leaves small, acerose, imbricated; flowers smail (orth 
America). See p. 333. 
4. Lechea L.—Klowers 2-morphous; petals in fertile flowers 3, 
small, narrow. Stamens few. Placentas of germen 3, 2-ovulate ; 
style usually short, stigmatiferous fimbriate, 3-merous at apex. 
Capsule 3-valved; valves finally separating from placenta or semi- 
septa, membranous or firmer (Zecheoïdes) ; seeds few ; embryo sub- 
central, nearly straight or subspiral—Herbs or undershrubs many 
stemmed, thin ; flowers very small (North America). See p. 333. 
