Selago. | SELAGINEX (Rolfe). 135 
Calyx-loves 3 to 4 times as long as the 
tube ee ve vs a ... (98) ascendens, 
Calyx-lobes about twice-as long as the tube (94) humilis. 
Section 3. Ertcomipea. Leaves not fascicled, entire, heath-like; calyx cam- 
panulate; tube usually as long as or nearly as long as the lobes. 
*F lowers in ovoid or ellipsoid, often very numerous heads : 
Branches more or less divaricate : 
Plant tall; ultimate branchlets 4-12 in. 
long ... ie me oe ne ... (95) Mundii. 
Plant rather dwarf; ultimate branchlets 
3-2 in. long: 
Spikes Jax; leaves spreading from the 
base ©... one abe va ... (96) diffusa, 
Spikes dense; leaves not spreading from 
the base : 
Corolla-tube 2-3 lin. long: 
Spikes 5-6 lin. broad ae ... (97) fruticosa. 
Spikes 3—4 lin. broad : 
Calyx 14 lin. long; leaves not re- 
flexed at the apex... ie 
Calyx 1 lin. long; leaves mostly 
reflexed at the apex ... ... (99) fruticulosa. 
Corolla-tube 1-1} lin. long: 
(98) diosmoiies. 
Leaves linear, closely imbricate —_... (100) ramosissima, 
Leaves linear, somewhat imbricate ... (101) Morrisii. 
Branches erect or suberect ... oon ... (102) lamprocarpa, 
**F lowers in oblong or somewhat elongated, some- 
times narrow spikes; branches more or less 
erect : 
Spikes about 3 lin. broad ve ees ... (103) triquetra. 
Spikes 4-6 lin. broad : 
Leaves rather lax... we oss ... (104) nigrescens. 
Leaves dense : 
Leaves densely cinereous canescent ... (105) aspera. 
Leaves hispidulous, hispid or nearly 
glabrous : 
Corolla-tube 2 lin. or more long : 
Calyx puberulous... ist ... (106) Thomii. 
Calyx villous : 
Calyx loosely villous, the hairs not 
tulvous + 
Leaves suberect : 
Bracts slightly ciliate .-. (107) elata. 
Braets strongly ciliate ... (108) spinea. 
Leaves spreading or recurved ... (109) eckloniana. 
Calyx densely villous, the hairs 
fulvous, at least when dried : 
Leaves suberect or spreading, not 
recurved, glabrous or somewhat : 
hispid... in es ... (110) glutinosa. 
Leaves spreading or recurved, ne 
strongly hispid _.... ... (111) bispida. 
‘Corolla-tube J} lin. long yh ... (112) ecurvifolia. 
1. 8. villicalyx (Rolfe); perennial, branched chiefly at the base, 
about 6-12 in. high; branches puberulous; leaves in approximate 
fascicles, crowded, lanceolate or linear-lanceolate, subobtuse, pube- 
rulous, 4-9 lin, long ; heads roundish, dense, usually numerous and 
