Stapf. — On the Sonerileae of Asia. 315 
1. S . nepalensis , Wall. Nepal, Sikkim (800—2700 m.) ; 
Khasia Mountains, Silhet, Manipur, Mishmi Hills. 
Gymnagathis, Stapf. 
Flores tetrameri. Calycis glaberrimi tubus turbinato-cam- 
panulatus^ dentes breves , late triangulares . Petala ovata, 
obtusa, plerumque mucronulata. Stamina 8, inaequalia ; 
antherae dimorphae, exteriorum staminum e basi breviter 
de cur rente longe lineares, apice uniporosae, interiorum 3-plo 
breviores, lineari-oblongae, omnes inappendiculatae. Ovarium 
semiadnatum, 4-loculare, vertice exsculptum, margine mem- 
branaceo quadri-lobulato coronatum. Stylus filiformis, stig- 
mate incrassato. Capsula brevis, obpyramidata, tenuiter 8- 
costata, laevis, valvulis late rotundatis dehiscens. Semina 
ignota. 
Herba acaulis , rhizomate brevi crasso. Folia longe pe- 
tiolata, crassiuscida , late ovata vel subcordata, integra, 7-9- 
nervia. Flores albi roseo-sufifusi, majusculi, in cymis saepe 
ad florem unicum reductis longe pedunculatis solitariis vel 
subracemose aggregatis dispositi. 
Distr. South China. 
1. G. peperomiifolia, Stapf (Syn. S. peperomUfolia, Oliv. ; 
Cogn. Melast. 516). Mausan Mountains, Prov. of Canton. 
Phyllagathis, Blume. 
Distr . From Tenasserim to Sumatra ; China, Tonkin, Borneo. 
A well-defined genus with tetramerous (rarely trimerous?) 
flowers, having two equal whorls of stamens and winged calyx- 
teeth ; plurinerved leaves with very distinct transversal 
venation ; and contracted capituliform or umbel-shaped cymes. 
Cogniaux says in his diagnosis of the genus, ‘ Folia opposita vel 
terminali solitario .’ Their leaves are typically always opposite, 
but in P. rotundifolia one leaf of the uppermost pair is sup- 
pressed as a rule, leaving at its place only a small naked bud, 
or no trace at all. Then the leaf appears terminal, bearing 
the peduncle laterally at the base of its petiole, which seems 
to continue the axis. 
1. Ph. rotundifolia , Bl. From Tenasserim to Sumatra. 
