236 LOASACEJE. Mentzdia. 



less than half a line long. Torr. & Gray, Fl. i. 534; Watson, Bot. King Exp. 

 113, excl. vars. M. Veatchiana, Kellogg, Proc. Calif. Acad. ii. 99, tig. 28. 



Dry valleys and foot-hills in early spring. Southeastern California (Fort Tejon, Xantus ; Mo- 

 have Creek, Bigelow, Cooper}, and on the eastern side of the Sierra Nevada to Oregon ; also east- 

 ward to Colorado and New Mexico. The tuberculate seeds distinguish it from the next two. 



2. M. dispersa, Watson. Very similar to the last, but the leaves sinuate- 

 toothed, sometimes entire, rarely pinnatifid, the uppermost often ovate : calyx-lobes 

 a line long: capsule narrowly linear-clavate : seeds very often in a single row, some- 

 what cubical, more or less grooved upon the angles, very nearly smooth. Proc. 

 Am. Acad. xi. 137. M. albicaulis, var. integrifolia, Watson, Bot. King Exp. 114. 



Washington Territory and Oregon to Colorado ; Yosemite Valley (Bolanckr) ; Guadalupe 

 Island, Paltrier, Apparently confined to rather higher altitudes than the last. 



3. M. micrantha, Torr. & Gray. Leafy, branched, 1 to 2| feet high : leaves 

 ovate, an inch long or less, somewhat sinuately toothed : flowers clustered, shorter 

 than the broad floral leaves : calyx-lobes a line long ; the ovate petals a half longer : 

 outer filaments more or less dilated : capsule broadly linear, 3 to 5 lines long: seeds 

 few, irregularly angled, a line long, very nearly smooth. Fl. i. 535. Bartonia 

 micrantha, Hook. & Arn. Bot. Beechey, 343, t. 85. 



Rarely collected. California (Douglas, Wallace) ; Clear Lake (Torrey) ; Ojai, Peckliam. Dis- 

 tinguished from the last by its foliage and habit, and especially by its shorter broader and few- 

 seeded capsules and larger seeds. 



4. M. congesta, Torr. & Gray. Habit and foliage of M. albicaidis ; a foot 

 high : flowers clustered at the ends of the branches, conspicuously bracted with 

 broad toothed bracts, which are membranaceous at base : calyx-lobes 1^ to 2 lines 

 long : petals bright orange, 3 to 6 lines long : filaments all filiform : capsule clavate, 

 half an inch long : seeds irregularly angled, minutely tuberculate, nearly a line 

 long. Fl. i. 534 ; Watson, Bot. King Exp. 114. 



A rare species, on dry hillsides. Interior of Oregon (NuttalT) ; Sierra County (Lemmon) ; 

 near Austin, Nevada, Watson. 



5. M. gracilenta, Torr. & Gray. Stems often simple, 1 to H feet high, : leaves 

 narrowly lanceolate, pinnatifid with many narrow lobes or sometimes Only coarsely 

 sinuate-toothed : flowers usually clustered at the summit : calyx-lobes 2 to 5 lines 

 long : petals obovate to oblanceolate, rounded or acutish at the apex, 4 to 8 lines 

 long : capsule linear-clavate, \ to 1 inch long : seeds in 3 rows, irregularly angled, 

 very minutely tuberculate, two thirds of a line long. Fl. i. 534. M. albicaulis, 

 var. gracilenta, Watson, Bot. King Exp. 114. 



From Los Angeles northward to the Sacramento ; also in Northwestern Nevada, Watson. Pos- 

 sibly a small form of the next species. 



6. M. Lindleyi, Torr. & Gray. Slender, 1 to 3 feet high, branched : leaves 

 ovate to narrowly lanceolate, 2 or 3 inches long, pectinately pinnatifid or only 

 coarsely sinuate-toothed : flowers axillary and terminal : calyx-lobes 5 to 9 lines 

 long, lanceolate : petals obovate, abruptly acuminate, an inch long : filaments all 

 very slender: capsule linear-clavate, 12 to 15 lines long: seeds as in the last. 

 Fl. i. 533. Bartonia aurea, Lindl. Bot. Reg. t. 3649 ; etc. 



Rarely collected ; first found by DourfJas, probably in Central California, and introduced into 

 British gardens, and afterward by Bridges ; Corral Hollow, Brewer. It is also reported as found 

 by Bigelow on gravelly hills near the Colorado River, but this locality is somewhat uncertain. 



3. Seeds numerous in double rows upon the 3 broad placentae, horizontal, flattened, 

 suborbindar-winged, minutely tuberculate or nearly smooth : flowers often 

 large and showy: calyx-limb 5-cleft nearly to the base: petals 5 or 10: 

 filaments numerous, the outer often more or less dilated or petaloid : capsule 

 broad, oblong : leaves sessile (or petioled in No. 8), sinuately toothed or pin- 

 natifid : biennials. BARTONIA, Torr. & Gray. (Bartonia, Kutt.) 



