NORTH AMERICAN GERANIACEAE. 85 



half as long as the petals, anthers 2 mm. long; fruit obovoicl-pyrifonn, prominently 

 rugose-tuberculate, 2.5 X 4 mm. — California. A low plant, with petals no longer than 

 the sepals, is found near Yreka by Greene. — PL 12, fig. 19. 



2. L. DouGLASir, R. Br., I. c. Floerl-ea Douglasii, Baillon, I. c. Glabrous; sepals 

 narrower; petals deep yellow, pale-margined, occasionally rosy tipped, conspicuously 

 veined, spatulate-cuneate and emarginate, to obcordate-cuneate ; fruit varying from nearly 

 smooth to strongly tuberculate ; otherwise like the last. — California to Oregon. — PI. 12, 

 figs. 16-17. 



3. L. ROSEA, Hartweg, Benth., PI. Ilartw. 301; Brewer and Watson, Bot. Calif. 



II, 438. Yery similar to L. Douglasii; leaf-lobes usually narrower and linear; petals 

 mostly broader and, like the stamens, marked by numerous very delicate interrupted 

 longitudinal rose-purple lines; fruit very rough.— California. Perhaps no more than a 

 variety of the last. FloAvers heliotrope-scented. 



4. L. Macounii, n. sp. FloerTcea j)roserpinacoides, Macoun, Kept. Geol. Surv. Can- 

 ada, 1875-6, 192; Cat. Can. PL i, 91, in j^art. Limnanthes Douglasii, Macoun, Cat. 



III, 502. Gla])rous, 2-3 inches high; divisions of the leaves 5-9, remote, 3-6 mm. long, 

 ovate, mostly 3-cleft, their lobes broad and very acute ; flowers 4-merous, not showy as 

 in the other species; sepals oblong, rather obtuse, enlarging somewhat in fruit; petals 

 white (?), oblong-cuneate, erosely truncate, 3-4 mm. long; stamens about equalling the 

 petals, anthers .4mm. long; fruit obovoid, 3 mm. long, with very prominent tubercles. 

 — Vancouver Island (^Macoun). Collected only once, in 1875. — PL 12, fig. 18. 



FLOERKEA, WilUL, Neiie Schr. Gesellsch. iiaturf. Fr., Berlin, in, 448; Benth. and Hook. 



Gen., I, 275. 



Flowers 3-merous; petals oblong, entire, shorter than the sepals, open in aestivation; 

 otherwise as in Limnanthes, which, as Baillon, Eichler, and others have shown, is much 

 too close. 



1. F. PROSERriNACOiDES, "Willd., I. c. F. lacusfris, Pers. F. prdastris, lHwii. F. 

 uliginosa, Muhl. Cabomha 2>innata, Rom. and Schult. Nectris pinnata, Pui-sh. Gla- 

 brous, weak-stemmed, a span to a foot high; divisions of the leaves mostly 5, lanceo- 

 late or occasionally elliptical, 10-15 mm. long, remote; flowers very inconspicuous; 

 sepals ovate, acute, enlarging in fruit; petals white, 1-2 mm. long; stamens about 

 equalling the petals, anthers .2 mm. long ; fruit subglobose, loosely tuberculate above, 

 3-4 mm. long. — Rich, damp woods, Canada and New England to Oregon and Califor- 

 nia; south to Pennsylvania and Missouri. — PL 12, fig. 20. 



The Limnantheae do not appear to have been much studied from a biological stand- 

 point. In the large-flowered species the abundance of nectar is advertised by a pro- 

 nounced fragrance as well as by the color of the corolla, the veins or striae of which also 

 serve as nectar-marks. They are said to be much visited by bees, and are clearly 



