OP ARTS AND SCIENCES. 173 



smaller anthers than the lower ; filaments glabrous ; anthers hirsute, 

 mucronate at the base of each cell : style piiberuleut ; capsule ovate, 

 acuminate, equalling the calyx-lobes; seeds oblong, light brown, the 

 external seed-coat loose, cellular, and iridescent. — Hills of Zacatccas ; 

 October, 1888 (n. 2183). 



Castilleia m acrostic. ma. Perennial, 8 inches to a foot hi'di, 

 nearly smooth or more or less hispid with weak spreading hairs : 

 leaves small, rather numerous especially at the base, linear, acute, en- 

 tire, subamplexicaul, 1-3-nerved, 9 to 15 lines long, seldom exceed- 

 ing a line in breadth ; floral leaves broader and shorter, lanceolate or 

 narrowly ovate, angled or sparingly toothed toward the apex, often 

 yellow-tipped : flowers closely sessile in a short spike, slender, 8 to 12 

 lines long, surpassing the bracts; calyx light yellow, equally cleft be- 

 fore and behind, the lobes emarginate or two-toothed ; corolla a third 

 longer than the calyx, yellow, the lower teeth linear, acuminate, erect: 

 stigmas conspicuously exserted, thickish, sometimes more than a line 

 long, recurved. — Grassy slopes, Flor de Maria, Mexico ; July, 1890 

 (n. 3194). This appears to be the same as Mr. Pringle's n. 1545 

 from Chihuahua, which was distributed under the provisional and 

 unedited name of C. h'ihospermoides, HBK., var. (?) jlava, Watson. 

 Specimens of this number differ from 3194 chiefly in being more his- 

 pid and in having the stigmas less prominently exserted, which differ- 

 ences may be in part due to the less advanced stage of development. 

 Both plants differ from C. lithospermoides in the size and color of the 

 corolla, in the deeply cleft conspicuously exserted stigma, and also in 

 the shorter relatively thicker and more coarsely reticulated seeds. 



RuELLiA BouRG^i, Hemsley. The mature cajjsules of this species, 

 which were wanting in the type specimens and could not therefore be 

 described, are excellently shown in Mr. Pringle's u. 2951 (barranca 

 near Guadalajara, September, 1889). They are rigid, lanceolate, 

 acutish, cuspidate, glabrous, 2 to 2\ inches long and ^ inch broad, the 

 valves with a conspicuous median furrow; hooks ascending, bifid; 

 seeds orbicular, nearly 3 lines in diameter. 



JusTiciA Pringlei. Herbaceous, 2 feet high, hirsute with spread- 

 ing white hairs : leaves ovate, acuminate, entire, petiolate, l-g- to 2^ 

 inches long, half as wide ; the lowest smaller, orbicular, obtuse : flowers 

 small, distant, borne in a spreading panicle ; lower bracts foliar, ovate, 

 the upper much smaller, lanceolate ; bractlets minute, awl-shaped, half 

 the length of the calyx ; calyx-teeth 4, narrowly linear, attenuate, 

 2^ to 3 lines long ; corolla 4 to 5 lines long, pale rose-color, the limb 

 nearly equalling the tube, the upper lip narrowed to a retuse summit, 



