J 



350 



Vermischte neue Diagnosen 



1047. Pectinella gen. nov, J. M. Black in Trans. R. Soc. S. Austr., 



XXXVl (1913, 10. VI), pi. I. 



Flores unisexuales, solitarii, basi va- 



ginante foliorum inclusi; flos masculus nudus; antherae 2, quadrilocu- 

 lares, leviter cohaerentes, pedunculo communi insertae, polline filamen- 

 toso; flos feraineus saepius bracteolis membranaceis plus minus connatis 

 absconditus; carpella gemina, non pedicellata sed pedunculo communi 

 inserta, in stylum attenuata, stigmatibus 3 capillaribus; carpellum fructi- 

 ferum subdrupaceum, mesocarpio carnoso, endocarpio corneo, in lobes 

 4 truncatos rigidos productum, itaque perlanthium quadrilobatum simu- 

 lans; embryo mox intra fructura apice ramuli persistentem germinans et 

 per basin Assam styli procedens, deraumque pericarpio emacerato quadri- 

 partite et pectiniformi cinctus ad fundum maris descendens et ibi radi- 

 cans. Folia alterno-disticha, caules nonnuUi repentes, ad nodes radi- 



— : This genus differs from any other in 



cantes. Herbae submarinae. — : 

 Fotamogetonaceae in the structure of the anthers, the hard 4-lobed frame- 

 work of the fruiting carpel, and the peculiar mode of reproduction. 



1048. Pectinella antarctica Black, 1. c. 



Herba submersa, floribus 



dioicis, foliis apice lunatis, anthera a basi valvis 3 dehiscente, connective in 

 acamina gemina producto, uno carpelle saepe abortive. — This plant has 



already received nine different names: 



Amphibolis zosferi folia Agardh; 



Catdinia antarctica R. Br.; Cyniodocea antarctica Endl.; Cymodocea zosterifolia 

 F. V. M. ; GraumueUera antarctica Reichb. ; Kernera antarctica Schult. ; Posidonia 



m 



antarctica Spreng. ; Buppia antarctica LabilL; Thalassia antarctica F. v. M. 

 This multiplicity et names is chiefly due to the flowers remaining 

 unknown for so long. — It grows in salt water along the coasts of 

 Victoria, South Australia, and Western Australia, and was first 

 recorded by Labiliardiere, the botanist of the expedition sent by Louis 

 XVI. in 1791 to search for La Perouse. His specimens, obtained near 

 Cape Leeuwin, W. A., were in leaf only, and judging by analogy, he 

 named and figured them as Ruppia antarctica in his Novae HoUandiae 

 Plantarum Specimen, II, p. 116, tab. 264, published in 1806. Charles 

 Gaudichaud, botanist to Freycinet's voyage of discovery, 1817—1820, 

 collected the same plant at Shark Bay, W. A„ and this time male 

 flowers were found and described (Voyage auteur du Monde: Botanique, 

 p. 430, tab. 40, fig. 2). 



1049. Agathosma trichocarpa E. M. Holmes in Trans. Bet. Soc. Edin- 

 burgh, XXVI (1913), p. 76, pi II. — Pruticulus erectus, ramosus, ramis 

 erecto-patentibus, apicem versus fastigiatis, subcorymbosrs; ramulis an- 

 gularibus, dense feliatis, florentibus purpuree-rubris, pilis et glandulis 

 obtectis; foliis parvis, sessilibus, lineari-lanceelatis obtusis, inferieribus 

 longieribus reflexis, 6 mm longis, 1—2 mm latis supra planis vel sub- 

 canaliculatis ; margine glanduloso-ciliatis ; glandulis pluricellularibus ; 

 floribus in capitulis paucifloris, pedicellatis dispositis, bracteis paucis 

 linearibus ciliatis; calyce glabre, segmentis lanceelatis obtusis, 1,5 mm 

 longis, et 1 mm latis, nerve unice, crasse, glandulis biserialibus im- 

 mersis praeditis, petalis albis, 4 mm calycem superantibus, obevatp- 



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