NORTH AMERICAN FLORA 



[Volume 25 



38. 



39. 



Stem, petioles and calyx short 

 pubescent. 

 Pedicels densely glandular-pubes- 

 cent. 

 Leaf-blades with broadly ovate 

 teeth; petals distinctly emar 

 ginate. 



Leaf-blades with lanceolate or 

 ovate-lanceolate teeth ; petals 

 scarcely emarginate. 

 Pedicels not glandular-pubescent. 

 Blades of the basal leaves 4-6 

 cm. wide, the middle division 

 broadly spatulate, 3-lobed, the 

 lobes toothed ; sepal-bodies 

 over 1 cm. long at maturity 

 Blades of the basal leaves 2-3 

 cm. wide, the middle division 

 cuueate, usually 3-toothed at 

 the apex ; sepal-bodies less 

 than 1 cm. long at maturity. 41 

 Petals narrowly obovate or oblong, dark- 

 purple. 

 Plant not glandular-pubescent except 

 sometimes on the pedicels ; tips of the 

 sepals 1.5-2 mm. long. 42 



Plants glandular pubescent on the stem, 

 pedicels and style-column ; tips of the 

 sepals 0.5-1 mm. long. 43 



Peduncles several times longer than the leaves ; 

 primary divisions of the leaf-blades pin 

 natifid. 

 Divisions of the leaf-blades 1-pinnatifid. 

 Stems, petioles and pedicels strigil- 

 lose ; leaf-blades sparingly short- 

 hirsute on the veins beneath. 44 

 Stems, petioles and pedicels hirsute ; leaf- 

 blades copiously long-hirsute above. 45 

 Divisions of the leaf-blades 2-pinnatifid, 

 copiously long-hirsute beneath. 46 

 Leaf -blades silky-canescent, the pubescence some- 

 times partially deciduous, the segments nar- 

 rowly linear. 

 Sepals not glandular-pubescent 



very short-beaked. 

 Sepals glandular-pubescent ; 

 long-beaked. 

 Petals white. 



Pedicels glandular-pubescent. 



Plants with thick leaf-blades which are strigillose be- 

 neath, and canescent upper petioles, and densely 

 pubescent, usually glandular, sepals. 

 Leaf -blades with short ovate lobes ; petals about 



one half longer than the sepal-bodies. 40. 



Leaf -blades with long lanceolate lobes ; petals 

 about twice as long as the sepal-bodies. 49 



Plants with thin leaf-blades which are more or less, 

 usually rather sparingly, hirsute beneath, and 

 retrorse-hirsute or glabrate upper petioles, and 

 long-hairy, slightly if it all glandular, sepals. 

 Leaf -blades pentagonal or suborbicular in outline ; 

 petals broadly obovate. 

 Petals conspicuously veined ; stems copiously 



pubescent. 

 Petals not veined ; stems sparingly pubescent 

 or glabrous. 

 Fruit with a long, slender beak ; petioles and 



leaf-blades coarse-hairy. 51 



Fruit with a short, stout beak ; petioles and 

 leaf-blades usually sparingly pubescent 

 or glabrous. 52 



Leaf-blades, at least those of the upper leaves, tri- 

 angular-hastate in outline ; petals narrowly 

 obovate. 53 



Pedicels not glandular-pubescent. 



Ultimate divisions or teeth of the leaf-blades directed 

 forward ; petals 2 cm. long or less. 

 Sepals hirsute or merely ciliate, the tips fully one 

 half as long as the body ; terminal teeth 

 of the leaf-blades lanceolate. 



G. Fremonlii. 

 G. caespitosum. 



40. G. Cowenii. 



G. marginalc . 



G. gracile. 

 G. furcatum. 



G. Palmeri. 

 G. Goldtnanii. 

 G . pedatifidum. 



style column 

 style-column 



48. G. madrense. 



G. Cowenii. 



G. nervosum . 



50. G. latum. 



G. leucanthum. 

 G. Richardsonii. 

 G. deltoideum. 



