Pl.ex.thal. 79. PARNASSIiE. 417. Parnassia. 671 
Parnassia vulgaris et palustris, Rail Syn. 355. 
Gramen Parnassi minus, Ger. era. 840. 
Gramen Parnassi vulgare, Park. 429. 
Parnassia vulgaris, Lin. S. P. 391. 
Spongy bogs ; perennial ; September and October. 
Root fibrous ; petals heartshape, with pellucid veins ; 
scales short ; stamens at first incumbent upon the pistill, 
then upright; anthers heartshape, yellow. 
Fam. XV. 80 . CRUCIFERS. 
Calyx 4-sepaled, mostly deciduous ; petals 4, placed 
crosswise, on the hypogynous disk, alternating with the 
sepales, mostly clawed; stamens 6, 4 long, 2 short; ovary 1, 
on the stamenbearing disk; style l or 0 ; stigma usually 
2-lipped ; pericarp a siliqua or silicula, mostly 2-celled, 
2-valved, many-seeded; valves free, opening lengthways; 
partition membranaceous, margined, central, sometimes 
prominent or beaked; perisperm 0; corculum bent; radicle 
opposite to the hilum; seminal leaves nicked at the tip. — ■ 
Stem herbaceous ; leaves alternate. 
a. Siliculosa. Pericarp rounded. 
Silicula 1-celled, 1-seeded, 2-valved Xsatis. 435. 
Silic. 2-jointed ; upper-joint-seeds erect, 
sessile ; lower joint mostly barren Cakile. 432. 
Silic. 2-jointed ; upper-joint-seed pedi- 
celled; lower joint mostly barren Crambe. 433. 
Silic. 2-celled, valveless, 2-seeded . . . Coronopus. 434. 
Silic. 2-celled, 2-valved, not nicked; 
valves flat; cells many-seeded Draba. 444. 
Silic. 2-celled, 2-valved, not nicked; 
valves bellied ; cells many-seeded ; 
cotyledons linear Subularja. 443. 
Silic. 2-celled, 2-valved, not nicked ; 
valves bellied ; cells 3 or 4-seeded ; 
siyle^ leaflike Vella. 436. 
Silic. 2-celled, 2-valved, not nicked ; 
valves bellied ; cells many-seeded ; 
cotyl. incumbent Camelina. 445. 
Silic. 2-celled, 2-valved, not nicked; 
valves bellied ; cells many-seeded ; 
cotyl. accumbent Cochlearia. 442. 
Silic. 2-celled, 2-valved, not nicked ; 
valves flatfish; cells 1-seeded Alyssum. 446. 
