(3) FREDERIC NEWTON WILLIAMS. GENRE RHODALSINE GAY. 3 



Sepala 5, hyalino-marginata. Petala 5, ïntegerrima. Stamina 10, infra 

 petala disco pentagono urceolato inserta. plane libéra, distincte bise- 

 riata ; sepalis opposita 5 medio disci, petalis opposita 5 supra medium 

 disci inserta, basi haud saccata. sed petalis illorum oppositorum fila- 

 menta basi dilatata. Ovariurn uniloculare multiovulatum : styli semper 3. 

 Capsula ovoideo-conica usque ad basin in valvas 3 ehartaceas dehiscens. 

 Semina reniformi-subrotimda compressa, leevia vel tuberculata, hilo 

 estrophiolata. Embryo periphericus : cotyledones lineares ; radicula 

 situ commissuralis, filiformi-teres. — Herbae perennes. Folia linearia. 

 lineari-lanceolata, oblongo-lanceolata vel oblongo-elliptica, plana. Flores 

 axillares et terminales, in cymas laxas dichasiiformes dispositi. Petala 

 rosea vel alba. 



Rhodalsine ab omnibus generibus affinibus differt, — staminum 

 insertione inœquali, et illorum sepalis oppositorum 5 filamentis basi 

 haud dilatatis, insigniter autem cotyledonibus accumbentibus nec incuin- 

 bentibus. 



Species habitu et petalis Spergulariam revocant, capsulam autem 

 Alsinis habent. 



Syn. Alsine sect. PsaintnophilaB, Fenzl in Endl. Gen. Plant, p. 96o (1840); 

 et suppl. IV. pt. 3, p. oo (1847). 



Arenaria sect. Rhodalsine, Benth. et Hook. f. Gen. Plant. I, p. loO (1862). 



Alsine sect. Rhodalsine, Willi;, et Lge. Prodr. fl. Hisp. III, p. 613(1868): 

 Battand, et Trab. Fl. de l'Algérie.. L p. loi (1888). 



Alsine subgen. Rhodalsine, Pa.r in Engl, et Pranll Natiirl. Pflanzenf. lii. 

 1 b., p. 83 (1889). 



Genus duas species amplectitur. tërrarum et insularum regionis 

 Mediterranem incolas. 



1. Rhodalsine procumbens /. Gay. 



var. ß. linearifolia Williams. 



2. Rhodalsine geniculata Williams. 



var. y.. Poiretiana. 

 var. ß. glahrata. 

 var. /. communis, 

 var. o. Gayana. 



1. Rhodalsine procumbens J. Gay 1. c, p. 25 (1845) : Jacks. Ind. 

 Kéw. ii, p. 709 (1895). 

 (Diagnosis). Laete virens, pubescentiâ viscoso-glandulosà dense ves- 



