139 



into two lobes; margins entire or slightly crenately ent and toothed ; texture thinly 

 herbaceous; veins uniting below into two series of long irregular areolae, the lower 

 aeries parallel with the costa, the secondary series obliquely ascending, forked once 

 or twice above and free to the edge; sori confined to the free veiulets. 



Habitat, Ymala, and Lodiego ; collected by Dr. Edward Palmer (Nos. 1 116 and 1572), 

 August and October, 1891. 



[Type specimen in U. S. National Herbarium.] 



1 regard the privilege of describing this unpublished species of Prof. Daniel Cady 

 Eaton, to whom I have been indebted for so many and great courtesies, as a very 

 great honor, and I trust that I have exercised due care in discharging the pleasant 

 duty assigned tome by Dr. Pose. I have given to the specimens a very careful 

 examination, although my confidence in Professor Eaton's judgment would have led 

 me to accept of his determination without doing so. 



In the brief note accompanying the naming of this fern Professor Eaton expressed 

 the opinion that it was "near to G.japonica in venation, but more tender, and with 

 pinnae of different shape,'' but it seems to me to differ from 1hat species quite as much 

 bv its venation as by any of its other characters, and 1 believe that it will stand as 



a irood species. 



1 Georgk E. Davenpokt. 



Mei>1''uhi>, Mass., January 20, 1896. 



Explanation of Plate.-!!-. 1, tVrtile frond ; tig. 2. sterile frond; figs. 1 and 2, natural size; tig. 3, 

 fragment of a pinna showing fruit dots, somewhat enlarged, 



Heteropterys acapulcensis Rose, sp.nov. 



A large climbing shrub: bark of reddish-brown color, densely spotted with small 

 lenticels; leaves lanceolate, 7.5 to 15 cm. long, 2.5 to 5 cm. wide, acuminate, rounded 

 at base, glabrous, dark green with reddish veins above, yellow- 

 ish green beneath with more prominent veins, not glandular at 

 base; flowers in short axillary panicles; calyx 10-glandular; 

 petals yellow; stamens 10, all antheriferous ; styles 3; samarae 

 single, oblong, obtuse, with grayish pubescence, without lateral 

 crests, the wing bearing a single tooth on the back. Collected 

 by Dr. Edward Palmer near Acapulco, December, 1894 (No. 219). 



This species is very different from the other Mexican species, 

 Hiraea parviflora Rose, sp. nov. Figure 4. F]q 4 _ Samara of 



Shrub, 15 to 24 dm. high: older branches brownish, becoming Hiram polybotnja, 

 glabrate; leaves small, less than 2.5 cm. long, oblong, acute, scale*, 

 rounded at base, dcnselv tomentose on both sides (as also the 



young branches), shortly petiolate; umbels 2-flowered, slmrt-peduncled ; pedicels 

 slender, 12 mm. long, bibraoteate, some distance below the middle; calyx villose, 

 8-glandular; petals glabrous, orbicular, small, 4 nun. long, tapering at base into 

 a "slender claw, violet; stamens 10, glabrous, free nearly to the base; samarae 3, 

 villose, 14 mm. in diameter, the lateral wing giving a circular outline; dorsal 



wing very small. 



Collected by Mr. C. G. Pringle on dry hills near Tehnacan, altitude 5,.»00 feet, 



November 27, 1895 (No. 0274). 



This species was distributed by Mr. Pringle in 1896 as //. polybotrya, which, how- 

 ever is a very different plant. In this connection I might state that this latter 

 species has been collected by Mr. 1'ringle the past season (1890) and distributed as 

 No. 6500. It may be briefly described as follows : 



Leaves large, sometimes 3 inches long, scantily pubescent on the lower surface, 

 above nearly glabrous; petals denticulate, tapering at base into a slender claw, 3 

 lines long, violet color; samarae 3, 20 to 25 mm. in diameter, becoming nearly gla- 

 brate, the lateral wings united giving a circular outline, dorsal wing minute. 



I am indebted to Mr. W. Potting llemsley for comparing- my plant with the speci- 

 mens at Kew. 



