GENUS 23. 



ROSE FAMILY. 



269 



i. Waldsteinia fragarioides 



(Michx.) Tratt. Barren or 

 Dry Strawberry. Fig. 2273. 



Dalibarda fragarioides Michx. Fl. Bor. 



Am. i : 300. pi. 28. 1803. 

 Waldsteinia fragarioides Tratt. Ros. 



Mon. 3 : 107. 1823. 



Pubescent or nearly glabrous, root- 

 stock creeping, rather stout. Stip- 

 ules ovate-lanceolate, acutish ; leaves 

 tufted, long-petioled,3-foliolate( rarely 

 5-foliolate) ; leaflets obovate, obtuse 

 at the apex, broadly cuneate at the 

 base, dentate or crenate and some- 

 times incised, i'-2' long; scapes slen- 

 der, erect, bracted, corymbosely 

 3-8-flowered ; pedicels slender, often 

 drooping; flowers yellow, 3"-5" 

 broad ; achenes 4-6, finely pubescent ; 

 calyx-lobes ovate-lanceolate, acute. 



Woods and shaded .hillsides, New 

 Brunswick to Ontario, Minnesota, Mich- 

 igan, Indiana and Georgia. May-June. 



2. Waldsteinia Doniana Tratt. Southern Dry 

 Strawberry. Fig. 2274. 



W. Doniana Tratt. Ros. Mon. 3: 109. 1823. 



IV. parviflora Small, Bull. Torr. Club 25: 137. 1898. 



Perennial by horizontal rootstocks, villous-hirsute, 

 or glabrous in age. Leaves basal, 5'-i2 r high ; petioles 

 much longer than the blades, usually less densely pubes- 

 cent than the scapes ; leaflets cuneate-obovate or broadly 

 rhomboidal, ii'-3' long, coarsely and irregularly crenate 

 or lobed ; scapes erect, solitary or several together, com- 

 monly shorter than the leaves, corymbose at top; calyx 

 usually hairy, the tube broadly turbinate, ii"-ii" long, 

 the segments triangular-lanceolate, or lanceolate-acumi- 

 nate, often shorter than the tube; petals linear-oblong 

 or narrowly elliptic, shorter than the calyx-segments or 

 barely longer; achenes obovoid, ii" long. 



In woods and shaded soil, southwestern Virginia to 

 North Carolina, Tennessee and Georgia. March-May. 



24. GEUM L. Sp. PI. 500. 1753. 



Perennial herbs, with odd-pinnate or deeply pinnatifid, stipulate leaves, those of the 

 base clustered, those of the stem commonly smaller. Flowers cymose-corymbose or solitary, 

 yellow, white or purple. Calyx persistent, its tube obconic or hemispheric, usually 5-bracteo- 

 late, 5-lobed. Petals 5, orbicular, oblong or obovate, obtuse or emarginate, exceeding the 

 calyx. Stamens o, inserted on a disk at the base of the calyx; filaments filiform. Carpels o, 

 aggregated on a short receptacle. Style filiform, jointed, the lower part persistent. Seed 

 erect, its testa membranous. [The ancient Latin name.] 



About 40 species, most abundant in the north temperate zone, a few in southern South America, 

 i in South Africa. Besides the following, several others occur in western North America. Type 

 species: Geum urbanum L. 

 Calyx-lobes reflexed. 



Head of fruit sessile in the bracteolate calyx. 



Petals small and inconspicuous ; stipules small. 

 Petals white. 



Hirsute ; receptacle glabrous or downy. i. G. virginianutn* 



Finely pubescent or glabrate ; receptacle densely hairy. 2. G. canadense. 



Petals yellow ; stem hirsute. 3. G.flavum. 



Petals large, obovate, golden yellow ; stipules large. 



Hirsute ; terminal leaf-segment very large, usually cordate. 4. G. macrophyllum. 



Pubescent ; terminal leaf-segment ovate, cuneate or oblanceolate. 5. G. strictum. 



Head of fruit stalked in the bractless calyx. 6. G. vernum. 



Calyx-lobes erect or spreading ; flowers purple, nodding. 7. G. rivale. 



