ADDENDA. 
A. pleianthum Var. particolor n. var. The Nevada forms 
on which this variety is based have scapes 1-2’ above the ground, 
flattened above, not over 1” wide, erect, dark-purple or brown as 
well as the pedicels, and midrib of the flowers and bracts; leaves 
usually 2, 1-2” wide, 6-3’ long, faleate, bracts 2, very broadly" 
ovate, simply acute, 6” long; jodie els 6” long, stout, flattened’ 
like the peduncles, enlarged at tip, about 20; ‘flowers densely 
clustered, large; sepals elliptical-lanceolate, rarely narrower, 4” 
long, 14-2” wide, not spreading, thin and hyaline but with stout 
midrib, acute, } longer than the dark-purple stamens; filaments 
filiform exeept at very: base; capsule with 3 central and-2-lobed: 
crests; bulbs 1’ long’ and } wide, elliptical-ovate; coats many, 
very thin, the outer layer of each only. reticulated with fine, 
nearly square (rarély, oblong) meshes which are vertieal when 
not square; ribs about 18). Grows singly. on gravelly. slopes in’ 
Spririg Valley, eastern Nevada, at 6,000-6,500° alt., in flower 
June 3, 1895; also Dutch Mt., western Utah, June 12,.1891, and 
Spring creek, western Utah, Janes 23, 1891: This: inelades come 
forms mentioned under A. Tolmiei from Utah and Nevada on 
page 11 
From material which has come to hand since the foregoing 
was in print it is evident that the A. scaposum group should 
come next to the A. cernuum group, and that to it should’ be 
added A. lacounsum which has* walls of meshes straight and 
meshes erect and linear to oblong, like this group, the species’ is 
not at all related to A. bisceptrum (where Watson placed if). 
A better arrangement than the one givea would be to: place’ 
A. Parryi, atrorubens, fimbriatum, decipiens, and probably. eris- 
