46 PINK ORDER 



ly 1-celled, styles mostly 5, fruit splitting by 5-10 valves ; flowers solitary 

 or clustered ; leaves opposite, simple, entire ; biennial or perennial. 



1. Alpine dwarf, 2-5 in. high; stems 1 -flowered; 



petals exserted or included L. dffinis 



2. Stems 1-2 ft. high, several-flowered; petals usu- 



ally included L. Dritmmondii 



PARONYCHIA Adanson 1763 PARONYCHIA 



(Gr. paronychia, swelling about a nail, and hence used of the healing plant) 



PL 9, fig. 9-10. 



Sepals 5, somewhat united, bristly-tipped, petals none, stamens 5, 

 sometimes with 5 sterile ones also, ovary 1-celled, style 2-cleft, fruit small, 

 bag-like, 1 -seeded; flowers solitary or clustered; leaves opposite, simple, en- 

 tire ; perennial. 



1. Plants densely cushion-like; flowers mostly soli- 



tary and terminal 



a. Leaves oblong, obtuse ; stipules entire P. pulvindta 



b. Leaves needle-like, sharp-pointed ; stipules 2- 



cleft P. scssiliflora 



2. Plants tufted, but rarely densely cushion-like; 

 flowers in clusters ; leaves awl-shaped, bristle- 

 pointed P. Jdmesii 



SAGINA Linne 1753 PEARLWORT 

 (Lat. sagina, food, from its early use for pasturage) 



Sepals 4-5, separate, petals 4-5, or none, whitish, stamens 4, rarely 5, 

 ovary 1-celled, styles 4-5, fruit splitting to the base into 4-5 valves ; flowers 

 solitary, leaves minute, awl-shaped; low annuals or perennials. 



1. Petals shorter than the green sepals 5*. saginoides 



2. Petals longer than the purplish sepals S. nivdlis 



SAPONARIA Linne 1753 SOAPWORT; COW-HERB 



(Lat. saponaria, soap-like, from the soapy sap) 



PL 8, fig. 7. 



Sepals 5, united into a tube, petals 5, white, pink or red, with a claw, 

 stamens 10, ovary 1-celled or imperfectly several-celled, styles 2, fruit a 

 capsule opening by 4 apical teeth; flowers in corymbs or corymb-like 

 clusters ; annual or perennial. 



