CALTROP FAMILY 41 



b. Petals 2 times longer, fruit hardly longer, than 



the sepals L. usitatissimum 



2. Flowers yellow ; plant glabrous or finely hairy L. rigidum 



ZYGOPHYLLACEAE CALTROP FAMILY 



Sepals 5, petals 5, stamens 10, ovary 5-12-celled, style 1, fruit splitting 

 into 5-12 nut-like divisions; flowers solitary; herbs or shrubs with opposite 

 compound leaves. 



1. Leaflets 2; shrub COVILLEA 



2. Leaflets 6-10; herb KALLSTROEMIA 



COVILLEA Vail 1895 CREOSOTE BUSH 



(Named for the American botanist, Qoville) 



PL 4, fig. 7. 



Sepals 5, petals 5, yellow, stamens 10, ovary 5-celled, style 1, fruit 

 long-hairy, splitting into 5 nut-like divisions ; flowers solitary ; leaves of 2 

 leaflets, evergreen, heavy-scented; shrubs. 

 Branched shrub 3-10 ft. high ; leaflets unequal, oblong, 

 curved C. tridentdta 



KALLSTROEMIA Scopoli 1777 CALTROP 

 (Named for Kallstroem) 



Sepals 5, petals 5, yellow, deciduous, stamens 10, ovary 10-12-celled, 

 style 1, fruit splitting into 10-12 divisions ; flowers solitary ; leaves pinnate, 

 of 6-10 leaflets ; annual. 

 Plants spreading, hairy, 3-15 in. high; fruit beaked 



warted K. maxima 



CISTALES ROCKROSE ORDER 

 CISTACEAE ROCKROSE FAMILY 



Sepals 3-5, unequal, petals 5, 3 or none, yellow, stamens many, ovary 

 1 -several-celled, style 1, stigma 1, sometimes 3-lobed, fruit a capsule; flow- 

 ers of two sorts, petal-bearing and petal-less, in racemes or panicles ; woody 

 herbs with alternate simple entire leaves. 



HELIANTHEMUM Persoon 1807 FROSTWEED 

 (Gr. helios, sun, anthemon, flower, from the golden petals) 

 Characters of the family. 



