224 



Sonntag, Popoeatapetl is 17,783 feet in height, and must, there- 

 fore, be allowed the honor of standing at the head of the mountains 

 of the North American continent. 



Dr. Kellogg read the following description of new species of 

 plants : 



CoUinsia septemnei'va. — (Kellogg.) Fig. 69. 



Stem simple, erect, sub-glabrous or puberulent below ; short 

 somewhat wooly pubescent above. 



Leaves cordate-oblong, acute, entire, (or sub-entire ?) sub-sessile, 

 sub-glabrous above, (only a few remote hairs along the nerves) very 

 short pubescent beneath, margins scabrous and short pubescent, 

 seven-nerved. 



Flowers creamy yellow, streaked with dark purple lines, in whorls 

 of six to eight. 



Calyx segments lanceolate, acute. 



Corolla slightly scabrous and pubescent, thrice the length of the 

 calyx, gibbosity of the tube large, prominent and obtuse, lateral 

 v.ing-lobes long, and somewhat ligulate, apex emarginate ; upper 

 lip-lobes very short, entire. 



Allied to C. tinctoria, but the stem is not " glabrous," nor upper 

 leaves sessile, nor the floral leaves two to three mches long, nor are 

 they " coarsely dentate"; the calyx, also, is not "glandular," etc. 

 The color of the flower is similar, but the form is long and slender. 

 The seven-nerved character of the leaf is worthy of note. 



(Enotliera Nevadensis. — (Kellogg.) Fig. 70. 



Stem robust, sub-decum'oent, six to eight inches high, glabrous 

 below, minutely strigulose pubescent above, strongly decurrent 

 angled. 



Lower leaves oblong-lanceolate, iiregularly and also coarsely 

 erose-repand-dentate, petioles short, sub-winged and expanding at 

 the base, sparsely strigulose throughout, veiny, upper bractoid leaves 

 lance-linear, entire, corneously acute, on very slender petioles, about 

 the same len«;th as the lamina, or three or four times the Icnii-th of 

 the ovary ; slightly scabrulose and minutely strigulose throughout. 



Flowers small, white, in a dense, obtuse tcrmhial leafy spike, 

 Tieither circinate nor drooping. Calyx tube linear-funnel-form, 

 somewhat ridged, scarcely shorter than the ovary, segments cari- 

 nate, (or from a closely reflexed base erect beyond the middle) as 

 long as the tube ; petals ovate or obovate on a short claw ; stamens 

 somewhat unequal, mostly slightly exsert; anthers oblong, fixed by 

 the middle, versatile ; stigma sub-capitate scarcely a little longer. 



