ICOSANDRIA. POLYGYNIA. S09 



minate; petals ohlonf>-ovate, white. H ab. On the island 

 of Michdimackinak, Jake Huron. 14. mxotilis. 15. obovalis 

 16 arcticiis. 17 . phtiUcitus. IS.pedatus. 19. Chann.morvs. 

 _ A Widely dispersed genus of about 50 species, extend- 

 ing- trom the arctic circle, throug-hout Europe to the West 

 i.Kljes, and passing- the equator, species are also found 

 in Peru, Chili, Japan, China, the islands of the Pacific, 

 and on the continent of India. 



346. DALIBARDA. L. 



Calix inferior o-cleft, spreading. Petals 5, 

 Styles 5 to 8, long and deciduous. Seeds drj. 



Small herbaceous plants with creeping- perennial root«; 

 scapes 1 or few flowered, flowers white or yellow; leaves 

 entire or ternately divided. 



Species. 1. D. repe7is, 2, Fragarioides. Flowers 

 yellow. This species is also found in Siberia.— Of 

 this g-enus there is but another species indigenous to the 

 Straits of Magellan. 



347. DRYAS. L. (Mountain Avens.) 



Calix inferior, simple, S-cIeft. Peiah 8, 

 Seeds many, caudate, plumose. Receptacle de- 

 pressed. 



Low and suflTruticose alpine plants, partly cespitose; 

 leaves alternate undivided, nnarg-in entire or serrated, un- 

 der side white and tomentose; stipules adnate to the pe- 

 tiole; peduncles solitary, l-fiowered; flowers white. 

 ' Species. 1. D. octopetala. 2. integrifolia. (D. tenella. 

 Ph.) On the White Hills of New Hampshire. 



A genus of 2 species, common to the nonhern parts of 

 Europe and America. 



348. GEUM. L. (Avens.) 



Calix 10-cIcFt, inferior, segments alternately 

 siiialler. Petals 5. Seeds awncd, awn naked 

 or bearded, mostly geniculate. 



Herbaceous plants mostly producing pinnately divided 

 alternate leaves, with the terminal segment usuafly larger, 

 stipules adnate to the petiole; peduncles terminal or ax- 

 illary few-flowered. 



Species. \ . G . strictntn. 2. agrimonoides. Ph. r3--nl' 

 bum. 4. Tirginiahiim. 5. genicxUaium. 6. Hvcde. 7. c'liu' 

 turn. Ph. 8. radiatum. 9. Peckii. Ph Radical leave* 

 reniform. Is tliis plant uid^ed a Geum? 10. Anevionoides. 

 Also indigenous to Kamtschatkaas well as No. 8. W.tri. 



