162 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
under that name. Our plant, however, is very unlike P. stansburyi, having the 
corolla tube only slightly longer than the calyx instead of twice as long, while 
the leaves are larger and more slender, and the corolla lobes longer and 
narrower. 
Baker’s no. 60 from Cerro Summit, Colorado, is apparently the same species, 
HYDROPHYLLACEAE. 
Marilaunidium foliosum Wooton & Standley, sp. nov. 
Annual, 12 to 30 em. high; stems with very numerous, dense, spreading 
branches, these rather stout, hirsute and puberulent; leaves obovate to oblanceo- 
late or broadly oblong, very numerous especially about the inflorescence, obtuse, 
acute at the base, sessile, flat, glandular throughout, hispid on the upper sur- 
face; flowers very numerous, in terminal or axillary clusters, sessile or nearly 
so; calyx 5 or 6 mm. long, the linear lobes coarsely hirsute; corolla about 7 mm. 
long, purple, the very short tube much exceeded by the calyx, the lobes broad 
and rounded; seeds very numerous, minute, ovoid, with a thin, rugulose coat. 
Type in the U. S. National Herbarium, no. 480933, collected by F. S. Earle 
on saltgrass flats near Roswell, August 30, 1900 (no, 531). 
ADDITIONAL SPECIMENS EXAMINED: Roswell, alt. 1,140 meters, 1900, Harle 558; 
near Lake Arthur, August 1, 1905, Wooton; Fort Stanton, July 26, 1905, Wooton. 
This was distributed as Nama stenocarpum A. G ‘ay, but that is a prostrate 
plant with decurrent leaves and different pubescence. It is more closely re- 
lated, perhaps, to Marilaunidium hispidum, but that, too, has more abundant 
pubescence, narrower leaves, and different corollas, 
Marilaunidium tenue Wooton & Standley, sp. nov. 
Annual; stems slender, with few erect branches, 9 cm. high or less, puberulent 
and hirsutulous; leaves few, linear-spatulate, obtuse, 16 mm. long or less, nar- 
rowed at the base into a short petiole, hirtellous, glindular, the margins revo- 
lute; flowers few, axillary or cymulose, on slender pedicels 1 to 4 mm. long; 
calyx 3 mm. long in anthesis, increasing in size in age, the lobes linear, green, 
hirsute; corolla 4 to 5 mm, long, light blue, with a thick tube and narrow limb ; 
capsules glabrous, two-thirds as long as the calyx; seeds few, brown, pitted. 
Type in the U. 8. National Herbarium, no. 498090, collected on limestone hills 
3 miles south of Hillsboro, Sierra County, by O. B. Metcalfe, September 6, 1904 
(no, 1291). Altitude 1,500 meters, 
This was originally determined as Conanthus demissus (A. Gray) Heller, 
with which it has nothing to do. It is more closely related to Marilaunidium 
angustifolium, but is a lower, more slender plant, scarcely at all viscid, with 
longer corolla and much shorter calyx, and shorter floral leaves. 
Marilaunidium xylopodum Wooton & Standley, sp. nov. 
Perennial from a very thick, woody root; stems numerous, slender, sparingly 
branched, ascending, 8 em. long or less, hispid; leaves numerous, oblanceolate 
or oblong, acute, mostly flat, attenuate to the base, glandular, hispid; flowers 
few, cymulose, short-pedicellate; calyx 2.5 to 4 mm. long, with linear-subulate, 
hispid lobes; corolla purple, 6 or 7 mm, long, with a very thick tube not ex- 
ceeding the calyx, the lobes somewhat spreading, rounded; capsule about half 
as long as the calyx. 
Type in the U. 8. National Herbarium, no. 564567, collected in crevices of 
limestone rocks near Queen, July 31, 1909, by E. O. Wooton. Altitude about 
1,770 meters. 
