258 
posed single species of Helianthemum inhabiting the “Canada” of 
that day. As a matter of fact, however, the apetalous state of 
true H. Canadense Michx., as here defined, does not closely resem- 
ble a Lechea, while the corresponding state of the newly recog- 
nized species is, in a marked degree, suggestive of a plant of that 
genus. Indeed, I have only lately, while searching for the dead 
winter stems of the Aelianthemum, mistaken them for those of 
Lechea major Michx., and at first passed them by, an oversight 
which no one, I think, would be likely to commit in the case of — 
true H. Canadense. It would appear, therefore, not at all improb- \ 
able that the Hehanthemum described by Linnzeus as Lechea maja 
was in reality the plant here in view,and that his Czstws Canadensis 
was after all a different plant. An examination of the type spe¢h 
mens in the Linnzan herbarium can alone settle the question, an® — 
may prove that the plant here called majus requires a different 
name; but for the purpose of more easily handling the plants in 
this note, I adopt provisionally the name A. majus (L.), for the | 
newly recognized plant, reserving the name H. Canadense for oUF 
well-known Eastern species. 
HELIANTHEMUM CANADENSE (L.) Michx. ; 
From three inches to, rarely, two feet high, the pa 
flowers borne at a height of from four to twelve inches; on i 
occasionally very low and a little depressed; branches few, sien 
der, often somewhat flexuous, commonly several inches long, fe 
sometimes reaching a length of ten inches, simple oF ie ee : 
branched; stem and branches at first pale, becoming reddisi 5 
purplish with age, loosely pubéscent, or weakly hirsute with re # 
gularly spreading stellate hairs, becoming hoary with close Xe ee 
cence above, glabrate when old; leaves from near the base Of © = 
stem, on very short petioles, alternate narrowly oblong, oF ee ss 
what oblanceolate, obtuse, or sometimes acute, averaging er ae 
than an inch long by 3” wide, an extreme size being 15 ie, i 
margins at length revolute; below hoary with stellate pa . 
green above but clothed with short stellate hairs, the pee fe 
face becoming harsh and scabrous ; primary flower large, 5° ts . 
at first sub-terminal, but subsequent development of aa a pe 
leaves it in the axil of a branch or in the angle of the w! ys : 
furcated stem, where, later in the season, the remains eee : 
capsule may be found; occasionally a second solitary pao : 
produced some distance above the first; pedicel of the sr 
slender, 2” to 6” long; calyx finely pubescent and more OF ee 
loosely pilose; narrow outer sepals much shorter than the : 
