﻿Wooxox : New Plants from New Mexico 2G1 



about I cm. long, subtended by small leafy bracts : calyx-tube tur- 

 binate, 5 mm. long, limb of 5 subulate segments 1 cm. long, scab- 

 rous, an indurated ring forming at the base of the segments : petals 

 10, oblanceolate, acute, entire, light lemon-yellow, 2 cm. long, 

 the outer five 5 mm. broad, the inner a little narrower : stamens 

 numerous, five outer filaments slightly expanded, same length as 

 petals, inner ones shorter : style I cm. long ; stigma 3-parted, 

 minutely ciliate : pod campanulate-cylindric, barely 1 cm. long, 4 

 mm. in diam. when nature, with persistent calyx-lobes variously 

 arranged, scabrous, placentae 3, parietal, strongly horizontaly 

 laminated ; seeds numerous, flattened elliptic-orbicular, winged. 



Collected in a white soil (strongly impregnated with gypsum?) 

 at Round Mountain, half way from Tularosa to the Mescalero 

 Agency in the White mountains. July 21. Altitude 5400 feet. 

 No. 184. 



This species belongs to the group containing M. multiflora 

 (Nutt.) Gray and M. pumila T. & G., and is, judging from the de- 

 scription of that species, closely related to M. densa Greene, but 

 distinct from it as Prof. Greene assured me when shown my speci- 



mens. 



Mentzelia Rusbyi. 



Erect, annual (?) 1-1.5 m. high, branched above: stem stout, 

 scabrous, becoming glabrous, white : lower leaves long-lanceolate, 

 2 dm. long or less, 1 5 mm. wide, attenuate into a petiole, tipper 

 ones oblong-lanceolate, 4-10 cm. long, 1-2 cm. broad, sessile, 

 acuminate, sinuate-dentate with a few large sharp teeth, very rough 

 with barbed hairs : flowers in terminal cymes : calyx-tube clavate, 

 8-10 mm. long, bearing two pinnatifid bracts at its base ; segments of 

 the limb narrowly lanceolate, acuminate, 10-12 mm. long, 3 mm. 

 broad at base : petals 10, light yellow, the outer five narrowly obo- 

 vate to oblanceolate, 16-20 mm. long, 4-6 mm. broad, acutish, the 

 inner five a little narrower and shorter, and tipped with rudi- 

 mentary anthers : stamen numerous, 6-12 mm. long, a few of the 

 outer filaments slightly detailed : style I cm. long ; stigma 3 cleft : 

 capsule clavate-cylindric, 7 cm. long, I cm. in diameter, striate, 

 scabrous ; seeds numerous, flattened, ovate, winged. 



July 



collected at the Mescalero Agency in the White Mountains 

 26, at an altitude of 6300 ft., no. 2 10. First collected by I >r. 

 1 1. H. Rusby at Bellmont, Ariz., September 2, 1883 (no. 614), for 

 whom the species is here named. 



Its affiliations are with M. Wrightii Gray, from which it can 



