gos 
196 DIAGNOSES SPECIERUM NOVARUM. 
“S. E. Tibet :—On Doker-La, Mekong-Salween divide. Lat. 
28° 20’ N. Alt. 12,000 ft. Plant of 4-8 inches. Flowers pale 
rose-pink. On open stony pasture and screes. Aug. IQ17.” 
G. Forrest. No. 14,640. 
The nearest relative of this species is A. roseiflora, Sprague, 
a plant of the Mekong-Salween divide. The flowers of the two 
species are extremely alike. The leaves of Forrest No. 13,225 * 
and Ward No. gor are thick and fleshy, and are broader than 
those of A. euodonta. The leaves of A. ewodonta in the dried 
state are thin and grass-like. The species may be an extreme 
form of A. roseiflora, but in the absence of intermediates I prefer 
to keep them separate. 
Arenaria inornata, W. W.Sm. Sp. nov. 
Species affinis’ A. roseiflorae, Sprague a qua habitu nano, 
calyce multo minore, corolla alba inter alia removitur. 
Planta perennisnana. Radices numerosae anguste fusiformi- 
incrassatae ; caudex squamis indutus. Caules 1-3, erecti vel 
suberecti, 5-6 cm. alti, pilis articulatis albidis vel fulvidis vel 
tandem nigrescentibus plus minusve dense pubescentes. Folia 
inferiora squamiformia imbricata cauli adpressa ; superiora in 
petiolum vix discretum late marginatum dense albo-ciliatum 
attenuata, I-1.3 cm. longa, 3-4 mm. lata, lanceolata vel 
elliptico-lanceolata, apice obtusiuscula vel subacuta, margine 
ciliata tandem glabrescentia, utrinque glabra vel fere glabra, 
tenuiter papyracea. Flores solitarii vel in cymas. trifloras 
dispositi albi ; pedicelli ad 1 cm. longi pilis articulatis nigridis 
dense induti; bracteae foliis similes. Sepala exteriora circ. 5 
mm. longa, I-1.5 mm. lata, oblongo-lanceolata, obtusa, extra 
ad basim et ad medium et ad margines dense glanduloso- 
pilosula, interiora late scarioso-marginata. Petala circ. I cm. 
longa, obovata, apice breviter emarginata et saepius pauci- 
denticulata. Stamina 10 calycem paulo superantia filamentis 
glabris ; glandulae ut in sectione Odontostemmate. Ovarium 
2 mm. longum stylis duobus circ. 4 mm. longis instructum. 
Fructus deest. : 
“China :—N.W. Yunnan, on the Mekong-Salween divide. 
Lat. 28° 12’ N. Alt. 12,000 ft. Plant of 2-3 inches. Flowers 
white. On boulders and ledges of cliffs. July 1917.” G. 
Forrest. No. 14,444. 
Arenaria napuligera, Franch., var. monocephala, W. W. Sm. 
Var. nov. 
Haec planta a typo differt caule simplice, floribus solitariis, 
stylis duobus ; inter A. napuligeram, Franch. et A. ionandram, 
ye = Vid. A roseifiora, Sprague in Kew Bull. (1916), 33- 
