ROSACEAE 



36I 



8. Argentina. 



9. Comarum. 



10. DUCHESNEA. 



II. Fragaria. 



12. 



13- 



14. 



SlBBALDIOPSIS. 



Dasiphora. 

 Drymocallis. 



I. 



Achenes glabrous; herbs. 

 Leaves odd-pinnate. 



Petals yellow; leaves in- 

 terruptedly pinnate. 

 Petals red; leaves regu- 

 larly pinnate. 

 Leaves trifoliolate. 



Petals yellow, receptacle 



not pulpy. 

 Petals white or cream, 

 receptacle fleshy. 

 Achenes hairy; shrubs or under- 

 shrubs. 

 Leaves trifoliolate; petals 



white. 

 Leaves pinnate ; petals yellow. 

 Style nearly basal, ovules ascending or 

 nearly erect ; leaves pinnate. 

 Style not articulated to the ovary; flowers 

 racemose or spicate. 

 Hypanthium not prickly; petals lack- 

 ing. 

 Stamens 2-4; pistil I. 

 Stamens in the staminate flowers 

 numerous; pistils 2. 

 Hypanthium prickly, the prickles 

 hooked. 

 Seeds inserted at the proximal end of the ovary, 

 perfectly basal. 

 Style persistent on the achene; leaves 



interruptedly pinnate. 

 Style deciduous; leaves trifoliolate. 

 Fruits of more or less fleshy drupelets. 



Drupelets very pulpy; upright or prostrate partly 



woody vines or shrubs. 

 Drupelets nearly dry, enclosed by the calyx; low 

 tufted herb. 

 Carpels enclosed in the hypanthium which becomes fleshy in 

 fruit. 



I. Opulaster Medic. 

 O. opulifolius (L.) Kuntze. Rocky 

 Tenn. and Mich. 



Conn. Rare and local in New London Co., otherwise unknown. 

 N. Y. Unknown on L. I., rare and local on S. I., thence scattering 



up the Hudson Valley to the Highlands. Not reported from the 



Catskills. Perhaps not a wild plant in the area. 

 N. J. Rare and local in Camden, Burlington, Middlesex and 



Mercer counties, thence increasing but not common northward. 



LInknown in the pine-barrens. 



15. Sanguisorba. 



16. I'OTERIUM. 



17. Agrimonia. 



18. 

 19- 



Geum. 



YValdsteinia. 



20. RUBUS. 



21. Dalibarda. 



Rosa. 



river banks: Que. to 



