218 PITTONIA. 
rather sharply and mucronately dentate: peduncles shorter 
than the leaves, bearing an involucrate pair of purple flow- 
ers; involucre large for the plant, lacerately cleft: calyx 
with 10-nerved tube shorter than the teeth, these with ob- 
long-lanceolate body tapering to a stoutish aristiform apex: 
corolla twice the length of the calyx, the petals purple 
tipped with white. 
Native of Vancouver Island, where it was collected by 
Mr. John Macoun, in 1893. Analogous to T. monanthum, 
and more reduced than that in size, the involucres rarely one- 
flowered ; but still not very closely related to the Californian 
plant, the herbage being deep green and perfectly glabrous; 
the calyx wholly different in its proportions. It was dis- 
tributed by Mr. Macoun under the name T. pauciflorum, 
perhaps because the name is well applicable. 
TRIFOLIUM ULTRAMONTANUM. Near T. variegatum, but 
more slender, yet not depressed, often quite erect, only spar- 
ingly branching, 8 to 18 inches high: lowest leaves with 
exactly obcordate leafiets about } inch long, those of the 
upper portion of the stem twice as large, cuneate-obovate, 
retuse or emarginate, all inconspicuously denticulate: pe 
duncles very slender, of more than twice the length of the 
short-petioled leaves: heads small, only about 4 lines broad ; 
involucre of 5 or 6 broad and short sharply laciniate lobes: 
panulate calyx-tube scarious, 10-nerved, the deltoid-ovate 
to ovate-lanceolate teeth green-herbaceous, tapering to a short 
awn, the whole tooth or segment not longer than the tube: 
pods exceeding the calyx, 2-seeded: seeds green, obtusely 
subtrigonous. 
Plentiful among grasses and sedges in the region of the 
middle Humboldt River, Nevada. A perfectly distinct ul- 
tramontane homologue of T. variegatum of the far north- 
western seaboard. Its more slender yet quite wiry stems, 
broad short leaflets, pale flowers and short broad-toothed 
calyx characterize it fully. Common though it is in the 
