1847-] A couple of hours' Ilerborization at Aden, 1215 



geniculate than is allowed in the generic character as given by D. C. 

 The pods mk concealed by the withered scarious persistent petals. 



Vexilla magna concava per anthesin reflexa subcarinata breviter 

 emarginata et calloso — mucronulata. Alee angustse falcatse elliptical basi- 

 truncato auriculatse ungue brevi tenui vexillo plus duplo brevioris. Ca- 

 rina vexillo major obtusa, stylus longus basi tortuoso-geniculatus filifor- 

 mis, stigmate punctiformi apicali. 



MlMOSE^. 



Benth. in Hook. Fl. Ind. 



Acacia erioloba ? Spinis rectis geminis, foliis tomentosis bipin- 

 natis 3-jugis primse 8-10-foliolatee, capitulis globosis axillaribus, stamini- 

 bus liberis, leguminibus ellipticis extus velutinis di-spinnis subfarctis. 



There was also another species not in flower, perhaps A. arabica, 

 and another which appeared to be Prosopis spicigera, but likewise not 

 in flower. 



Ficoidece. 



Orygia decumbens, D. C. III. p. 455. 

 ParonycTiiea. 



Nov. Genus. Ceratonychia. — Calyx 5-phyllus sepalis insequali- 

 bus ellipticis plus minus carinatis carina in aristam brevem producta, 

 marline scarioso apicem versus laciniato-ciliato, duobus multo majori- 

 bus cetera amplectentibus. Petala 5-lineari — hyalina, stamina 5-submo- 

 jiadelpha, filamentis basi dilatatis, linearibus planis apice attenuatis, an- 

 theris 5 albidis ovatis. Stylus longus apice 3-dentatus, dente nudis 

 breviore, stigma, unilaterale. Caryopsis 1-spermis semen basi fixum 

 erectum orthotropum pyriforme. Embryo erecta cotyledonibus planis 

 ovatis, albumine pauco laterali. 



Herba erecta dichotome ramosissima, annua. 



C. nidus. Ramis tentibus, pilis brevibus deorsum scabris, foliis cruci- 

 atim verticellatis subsessilibus ellipticis utrinque acutis apice mucronatis 

 o-labriusculis margine scabrillis, stipulis connatis setosis, floribus ternis 

 sessilibus, involucris subspinoso — hispidis ramosis post anthesin valde 

 auctis, seminis testa rugoso— striata eleganter glandulis brunneis punc- 

 tata. 



This curious looking plant, which looks like a bird's nest with its 

 mass of branched involucres, differs from the section acanthonychia, of 

 Paronychia, in 2 not 3 of the sepals being exterior and armed. The 



7 s 





