FERNALD. — SOME NEW SPERM ATOPHYTES. 495 



E. (Anisophyllum) potosina. Ascending annual, branching from 

 the base : stems glabrous, or the younger parts minutely pilose, 2 dm. 

 high : leaves 1 to 1.75 cm. long, oblong, oblique, rounded or subtruucate 

 at base, bluntish at tip. glabrous, pale green above, glaucous beneath, 

 the margin coarsely appressed-crenulate; stipules deltoid-acuminate, laciui- 

 ate : flowers few in small mostly terminal clusters: involucre pyriform, 

 glabrous ; the lobes elongate-triangular, entire or nearly so, the 2 Hank- 

 ing the broad rounded sinus much larger and lacerate ; glands 4, long- 

 stipitate ; appendages very narrow or wanting ; false gland aristate, 

 rising from the base of the sinus: capsule glabrous, ellipsoidal, 2.5 to 

 3 mm. broad, barely 2 mm. high, the three lobes rounded : seed short- 

 oblong, subquadrate, 1.5 to 1.75 mm. long, the dorsal angle prominent, 

 the ventral suppressed, blackish, pulverulent, the angles and the margins 

 of the unequal honeycomb-pits paler. — San Luis Potosi and adjacent 

 Tamaulipas. San Luis Potosi, without locality, 1876 (./. G. Schaffner, 

 no. 856, in part) ; region of San Luis Potosi, alt. 1,850 to 2,460 m., 

 1878 {Parry & Palmer, no. 814, in part) : Tamaulipas, near Tula, 

 Sept. 21, 1898 (E. W. D. Holway, no. 3200). — Related to E. hyperici- _ 

 folia, L., E. Preslii, Guss., and E. brasilieiisis, Lam., but differing in 

 its fewer flowers, larger capsule, and much larger differently marked 

 seed. 



B. (Anisophyllum) interaxillaris. Perennial, with slightly woods- 

 base : stems prostrate or slightly ascending, 1 dm. or so long, pilose with 

 more or less spreading hairs : leaves short-petioled, oblong or obovate- 

 obloug, oblique, rounded at each end, 0.5 to 1 cm. long, 4 to 7 mm. wide, 

 minutely crenuhite, mostly purple-tinged or blotched, sparingly pilose on 

 the margins when young, soon glabrate ; stipules narrowly triangular, 

 fimbriate : flowers solitary, a single one accompanying each pair of leaves, 

 on slender pedicels 2 or 3 mm. long : involucre campanulate, 1.5 nun. 

 long, glabrous outside; the lobes triangular, about equal, hairy within ; 

 glands 3 or 4, brownish, mostly with suborbicular white appendages 

 1 mm. in diameter ; the 5th gland replaced by an elongated false-lobe 

 at the base of the shallow triangular sinus : ovary glabrous. — Morel* »S, 

 Puente de Ixtla, July 3, 1900 (Charles C. Beam, no. 25). Related to 

 E. stictospora, Engelm., but less pubescent and with solitary flowers. 



B. (Zygophyllidium) muscicola. Caudex tuberiform, globose or 

 oblong, 3 to 5 cm. long, narrowed above to a cylindric neck ; stem very 

 slender, branching from near the base, the slender flexuous subsimple or 

 slightly' forked branches 2 or 3 dm. long, glabrous: lower leaves subor- 

 bicular to ovate, rounded or blunt; the upper elliptic-lanceolate, 0.5 to 



