135 
fits our plant very well. The type appears to have been founded 
on a glabrous Mexican plant, and the var. pubescens subsequently 
established as one of Chas. Wright’s No. 825 from New Mexico. 
I have it from Mr. Baker that one of the specimens included 
under Chas. Wright’s 825 agrees with Mr. Pringle’s 461, and also 
with Rusby’s plant from New Mexico, from which it is evident 
that a portion of Wright's 825 was not true flexuosa. 
In the absence of more convincing evidence to the contrary, 
therefore, it seems best to restore Mettenius’ species and refer to 
it this plant of Mr. Pringle’s which answers to the var. pudescens. 
Specimens collected in New Mexico by Rusby and in Arizona 
by Lemmon, and distributed as P. cordata or as P. Andromede- 
Jolia, var. pubescens, must also beso referred. The P. cordata of 
my Catalogue Supplement and Check Lists thus becomes Pellea 
intermedia, Mett. 
440—FPellea pulchella, Fée. Limestone ledges, Santa Eulalia 
Mts.; March. 
446.—Pellea ternifolia, Link. Grassy summits, Santa Eulalia 
Mts.; November. 
443—Polypodium thysanolepis, A. Br. Cold cliffs, rocky hills; 
October. 
445—Woodsia Mexicana, Fée. Wet ledges; October. 
450—Psilotum complanatum, Spring. Seams of rocky hills; 
October. 
EXPLANATION OF PLATE. 
I, plant. 2, a lower pinna. 3, a middle pinna. 4, an upper 
pinna. 5, a lobed segment with section rolled back showing sori. 
6, scale from base of stipes. 
The Nectary of Yucca, 
By WILLIAM TRELEASE. 
The curious facts connected with the pollination of the capsu- 
lar Yuccas discovered by Englemann and Riley* have attracted 
much attention and elicited a good deal of criticism, in most,cases 
undeserved. So far as I have observed, none of this has applied __ 
*Engelmann: BuLt. ToRREY Bor. Civ, iii., 33, 37; iv., 63. Riley: Trans. 
St. Louis Academy, iii., 55, 178, etc. 
Wierhes, : £ ee 
_ 
