130 SELAGINEX (Rolfe). [ Selago. 
cocci ; pericarp crustaceous or indurated, without vaeuoles or spurious 
cells. Seeds oblong or rounded, 
Shrubs or undershrubs, usually dwarf, much branched and _ heath-like,.some- 
times annual herbs, more or less decumbent at the base; leaves solitary or 
fascicled, alternate or the lower sometimes opposite or subopposite, often small 
and narrow, sometimes broader, oblong, elliptic or spathulate, often entire, 
sometimes more or less toothed ; flowers sessile or subsessile, or sometimes more 
or less pedicelled, spicate, capitate or panieulate, or frequently with the spikes 
or heads disposed in elongated panicles or broad corymbs ; bracts narrow or broad, 
often more or less imbricate, sometimes adnate to the pedicels. 
Species 112 South African, 2 of whieh extend into Tropical Africa, with 
17 endemic species in the latter region, mostly on the hills. 
The species with a trilobed calyx, sometimes bilubed by abortion of the middle 
lobe, are now referred to Walafrida. 
Section 1. Eu-SeLaco. Leaves more or less fascicled ; cal yx campanulate ; 
tube usually as long as or nearly as long as the lobes. 
_ *Perennials, with more or less woody branehes and 
sessile or subsessile flowers, rarely annuals 
with the flowers pedicelled : 
+F lowers in lax or compact panicles, or in heads 
or spikes on short lateral branchlets form- 
ing elongated narrow panicles near the 
summit of the branches, rarely in simple 
spikes or heads : 
Individual heads rounded : 
Leaves puberulous or hispidulous ; 
Inflorescence thyrsoid, not l-sided: | 
Calyx 14 lin. long, villous... -. (2) villicalyx. 
Calyx 1 lin. long, pubescent ... (2) pachypoda. 
Inflorescence invariably 1-sided : 
Plant 1 ft. or more high: 
Calyx 1-14 lin. long : 
Calyx-lobes about as long as the 
tube ... wa “i ee 
Calyx-lobes about 4 as long as 
the tube... bi +» (4) Sandersoni. 
Calyx # lin. long: 
Corolla-tube 13-1$ lin, long... (5) Barbula. 
Corolla-tube 1 lin. long ... ... (6) capitellata. 
Plant 6 in. high su ane x (7) Galpinii. 
Leaves closely pubescent or velvety: 
Leaves oblong... ose tes ... (8) lithospermoides. 
(3) Cooperi. 
Leaves linear... ove ie .-. (9) Holubii. 
Individual heads oblong, somewhat elongated 
or lax: 
}Panicles ample, or if small, the leaves not 
small and rigid: 
Branches pubescent or puberulous : 
Leaves oblong : 
Leaves 2-4 lin. long ae ... (10) Flanaganii. 
Leaves 3-7 lin. long... on ... (11) pubescens. 
Leaves linear or lanceolate-linear : 
Pubescence close, short, and uni- 
formly dense... ee ... (12) Schlechteri. 
Pubescence soft, lax, or more or less 
in decurrent lines ; 
