Pi: ex. thai 79. PARNASSL^. 417. Parnassia. 671 



Parnassia vulgaris et paliistris^ Rail Syn. 355i 

 Grainen- Parna:ssi minus, Ger. em. 840. 

 Gramen Parnassi vulgare, Park. 429. 

 Parnassia vulgaris, Lin. S. P. 391. 



Spongy bogs ; perennial ; September and October. 



Hoot fibrous; petals heartshape, with pellucid veins; 

 scales short ; stamens at first incumbent upon the pistill, 

 then upright; anthers heartshape, yellow. 



Fam. XV. 80. CRUCIFEll^. 



Calyx 4<-sepaled, mostly deciduous ; petals 4, placed 

 crosswise, on the hypogyuous disk, alternating with the 

 sepalesj mostly clawed; stamens 6, 4 long, 2 short; ovary 1, 

 on the stamenbearing disk; 'style! orO; stigma usually 

 2-lipped; pericarp a siliqua or silicula, mostly 2-celled, 

 2-valved, many-seeded; valves fi^ee, opening lengthways; 

 partition membranaceous, margined, centi'al, sometimes 

 prominent or beaked ; perisperm 0; corculum bent; radicle 

 opposite to the hilum; seminal leaves nicked at the tip, — 

 Stem herbaceous; Zeofe^ alternate. 



a. Siliculosa. Pericarp rounded. 



Silicula 1 -celled, 1-seeded, 2-valved Isatis. 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 . . . Cokonopus. 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-. . S'uBulakia. 443. 



Silic. 2-celled, 2-valved, not nick-ed ; 

 valves bellied ; cells 3 or 4-seeded ; 

 style leaflike Vella. 436. 



Silic. 2-ceired, 2-valvedj not nicked ; 

 valves bellied ; cells many^seeded ; 

 cotyt. incumbent Gamelina. 445.' 



Silic. 2-celledi 2-valved, not nicked ; 

 valves bellied ; cells many-seeded ; 

 sotyl. accumbent Cochli;aria. 442. 



Silic. 2-celled, 2-valved, not nicked; 

 Valves flattish ; cells 1-seeded Alyssum. 446. 



