114 PROCEEDINGS OP THE AMERICAN ACADEMY 



minate, 2h inches long, l^lf inches broad, subcoriaceous, slightly 

 glossy above, a little paler and with prominent veins beneath, the 

 edges crisp : flowers on short opposite branches ; pedicels about 3 lines 

 long, calyx teeth acuminate ; corolla | inch long, three times the length 

 of the calyx, bright red ; tube cylindrical, densely yellow bearded in 

 the throat ; lobes 4, the three ventral subequal, the dorsal broader 

 emarginate ; filaments bearded below ; the rudiment one third to one 

 half the length of the others : capsule ovate, 4 lines long, the acu- 

 minate valves at last bifid : seeds separated by hairs. — Tamasopo 

 Canon, San Luis Potosi, June, 1891 (n. 5086). This is an anomalous 

 species, sharing almost equally the characters of Pentstemon and 

 Russelia. However, its angled stem, short rudimentary stamen, 

 cylindrical corolla tube, and the capillary structures between the seeds, 

 show apparently a stronger affinity to the latter genus. 



Castilleia pallida, Kuuth. var. ? angustata. A span high : 

 leaves simple, linear : floral bracts lance-linear, acute : flowers pale 

 yellow. — Grassy slopes near Patzcuaro, Michoacan, July, 1892 (n. 

 4117). 



Pedicularis eburnata. Rhizome short, knotty : stem erect, 

 hirsute-pubescent, terete, sim^Dle, 2-3 feet in height : leaves in out- 

 line lance-oblong, acuminate, 5-6 inches long ; rachis pubescent; leaf- 

 lets 16-22 pairs, ovate or lanceolate, acute, cleft into about 7 lobes, 

 green and scarcely pubescent below ; the segments margined with 

 white ivory-like teeth ; petioles of the radical leaves 2-3 inches long, 

 pubescent ; of the upper cauline leaves short or none : spike sim^ile, 

 more than a foot in length ; bracts lance-linear, callous-denticulate 

 with reflexed teeth, acuminate, the lowest sui-passing and the others 

 equalling the calyx : calyx 3-4 lines high, ovate, pubescent ; teeth 

 subequal, ciliate or slightly denticulate : galea narrow at the base, en- 

 larged upwards, truncate at apex, considerably exceeding the lip, the 

 latter 4 lines in length, with 3 orbicular crenate lobes ; the middle 

 one slightly smaller than the lateral: capsule smooth, ovate, 2-edged, 

 shortly acuminate, 5 lines long. — Sierra Madre, 9,000 feet. Chihuahua, 

 October, 1887 (n. 1556). 



DiCLiPTERA resupinata, Juss. var. ORBICULARIS. Leaves large, 

 ovate, 1^-2^ inches long: lateral pedicels very short: involucral 

 bracts larger, thinner, and more deeply cordate than in the typical form, 

 distinctly orbicular, retuse. — Barranca near Guadalajara, October, 

 1891 (n. 5169). 



Salvia clinopodioides, HBK. Specimens corresponding accu- 

 rately to Kunth's description and plate of this noteworthy species have 



