OF THE GENUS ARENARIA. 381 
70. A. soRATENSIS, Jtohrb. in Linnea, xxxvii. p. 266 (1871-72) ; 
Jacks. Ind. Kew. i. p. 181. 
Radix repens. Caules multi adscendenti-erecti, simplices vel 
paullum breviter ramosi, pilis reversis brevibus, superne densius 
hirtello-pubescentes ad summum, 20 centim. Folia ovato- 
lanceolata vel anguste ovata, marginato-incrassata, axillis inferi- 
oribus fasciculiferis, acuminata, superne pilis brevissimis sparsis, 
ad marginem versus et subtus nervo mediano paullum prominente 
densioribus, reversis scabrida, binorum oppositorum altero ad 
caulis ramorumque basin sterili, ad apicem florifero, altero rarum 
fere semper abbreviatum contractum ferente. Flores longe 
pedicellati, pedicellis patentibus nisi apice arcuato-erectis, pilis 
reversis densis griseo-scabridis. Calyx ovoideo-campanulatus, 
basi rotundatus; sepala ovato-lanceolata acuminata, apice nigri- 
cante recurvo, margine scarioso ciliato, nervo mediano promi- 
nente scabrido. ^ Petala alba ovato-oblonga obtusa, calyce 
paullum longiora. Semina fusco-atra, lenticularia. 
Differt hee, que A. lanuginosce affinis est, ab ila habitu, 
foribus multo majoribus ealycisque structura diversissima. 
Deseription verified from unnamed specimens in Herb. Kew. 
labelled * Mandon, no. 959,” collected in 1858. In a medium- 
siz: capsule there were 22 seeds. 
Hab. Bolivia: near Sorata in prov. of Larecaja (Mandon, 
ho. 959). 
7l. A. PLEURANTHA, Phil. in Anal. Univ. Santiago, 1893, 
P763; Reiche & Johow, Fl. de Chile, p. 191 (1896). 
Glabra, perramosa, 12 centim. Radix gracilis. Caules ramosi, 
adscendenti-erecti, ramis teneris. Folia oblonga obtusa, basi in 
petiolum brevem attenuata, obsolete nervata, margine levia 
NX incrassata. Sepala 4 mm. longa, ovato-lanceolata, apice 
acuta recta, Petala 6 mm. longa, calyeem superantia, alba, 
obtusa. Semina rufo-atra, globoso-reniformia. 
The original description of this plant by Philippi is very brief 
and Scarcely diagnostic. As far as it reads it might apply 
almost equally well to A. parvifolia; and from the description 
‘lone as applying to Hartweg’s specimens from the Andes of 
uador, I was disposed to sink it in this species. There are, 
wever, authentic specimens from Philippi in Herb. Kew., and 
"om these is drawn up a fresh description, in which satisfactory 
Points of difference between the two plants are recognizable. 
