39 



6. P. sibirica, Linn. ; P. elegans, Benth. Fl. Hongk. 44, Hong- 



kong ; Taimoshan, Hongkong New Territory ; Phoenix 

 Mountain, Swatow ; North River, Fl, blue, April. 



7. P. nimborum, Dunn sp. n. P. Latouchei, Franch. (ut videtur ex 



descriptione) affinis sed carina cristata f oliisque non ciliatis 

 differt, 



Suffrutex praeter ramos foliaque omnino glaber, ramis a caule 

 prostrato simplicibus, primo puberulis. Folia oblongo- 

 ovata, apice basique acuta, brevissime acuminata, ad 7*5 cm. 

 longa, membranacea, praeter marginem infra adpresse 

 hirsutana glabra, venis 5-6-paiibus, ob colore tantum con- 

 spicuis, quaque in proximam arcuata ; petioli ad 1*5 cm, 

 longi, Racemi in summis ramis solitarii vel paniculam 

 formantes, 4-5 cm, longi. Flores breviter pedunculati, 

 rubelli,- 7 mm. longi. Sepala exteriora inaequalia, duo 

 antica suborbicularia obtusa, posticum saccatum. Alae 

 deciduae, obovatae ; carinae limbus cucullif ormis unguiculo 

 brevior ; crista sessilis, in filamenta linearia laciniata ; 

 petala superiora per tres partes cum carina ope tubi 

 staminalis connata, obtusa, carina brevicra. Antherae 

 glabrae, filamentorum parte libera breviores. Stigmata 

 inaequalia, superius breve dentiforme, inferius subrotun- 

 datum, pendens, vix prominens. 



Summit of the Phoenix Mountain at about 5000 feet, Dunn's 

 Han Expedition, 11, 4. 1909, Herb. Hongk. n. 6419. Fl. 

 rose, April. 



3.— SEOURIDACA, 



1, S. tavoyana, Wall. : S. scandens, Benth. Fl. Hongk. 45, In 

 woods at Little Hongkong, Mt. Parker, Sukunpo and 

 Wongneichong, Hongkong. Fl. pink, August, 



CARYOPHYLLACEAE, 

 Key to genera, 



1. Sepals united into a tube 1. Dianthus. 



Sepals free .,, ,,, ,,, .., 2, 



2. Styles distinct 3. 



Styles united in a column ... ... 5. 



3. Leaves flat ... ... .., .,, 4, 



Leaves subulate 4, Sagina. 



4. Sepals entire ... 3. Arenaria. 



Sepals bifid 2. Stellaria. 



5. Leaves orbicular 5. Drymaria. 



Leaves linear or oblong 5. 



6. Leaves subulate 7. Polycarpaea. 



Leaves oblong or spathulate 6, Polycarpon. 



1.— DIANTHUS. 



D. longicalyx, Miq, is not distinguishable from D. superbus, L, 

 and D. Morrisii, Hance is certainly the cultivated 

 D. Caryophyllus, L, 



