Transactions of the Linnean Society of London/Volume 10/On the Proteaceae of Jussieu/Dryandra

38. DRYANDRA

Char. Gen. Calyx quadripartitus v. quadrifidus. Stamina apicibus concavis laciniarum immersa. Squamulæ hypogynæ quatuor. Ovarium biloculare, loculis monospermis. Folliculus bilocularis, ligneus: Dissepimento libero, bifido. Receptaculum commune planum, floribus indeterminatim confertis, paleis angustis, rarò nullis. Involucrum commune imbricatum.

Habitus. Frutices v. Arbores, vix excelsæ. Rami umbellati. Folia plerumque humiles. Rami dum adsint sparsi vel umbellati. Folia sparsa, pinnatifida v. incisa, plantæ juvenilis conformia. Involucra solitaria, terminalia, rarò lateralis sessilia, foliis confertis interioribus quandoque nanis obvallatam, hemisphærica, bracteis adpressis, in quibusdam apice appendiculatis.

Obs. Dryandra of Thunberg, first published in Flora Japonica, being not generically different from Aleurites, which was previously established by Forster, I have peculiar satisfaction in giving the name of my respected friend Mr. Dryander, to a genus so nearly related to Banksia, from which indeed it differs chiefly in Inflorescence, but in that respect so widely as to be at once distinguishable: there is also something in the habit, especially in the leaves of the great number of species, by which, independent of the parts of fructification, the genus is pretty certainly indicated; and it is worthy of notice, that, while Banksia is generally spread over all the coasts of New Holland and of Van Diemen's Island, Dryandra has hitherto been observed only on that part of the south coast called Lewins Land, where, however, its species are nearly as numerous and abundant as those of Banksia itself.

*1. D. floribunda, foliis cuneiformibus inciso-serratis, involucri bracteis exterioribus glabriusculis, calycis laminis glabris, stigmate subclavato obtuso.

Hab. In Novæ Hollandiæ orâ australi; Lewins Land: in collibus saxosis. (v. v.)

Variat receptaculo epalcato.

*2. D. cuneata, foliis cuneiformibus sinuato-dentatis spinosis petiolatis, involucri bracteis omnibus sericeis, calycis laminis barbatis, stigmate subulato-filiformi acuto.

α. Folia vix sesquiunciam longa, dentibus terminalibus subæqualibus.

β. Folia biuncialia, apicis dilatati denticulo medio breviore sinubus latioribus. Forsan species distincta.

Linn. Trans. Vol. X. Tab. 3. p. 213.

Dryandra formosa

Mr. Brown, on the Proteaceae of Jussieu.

213

Hab. In Novæ Hollandiæ orâ australi; Lewins Land: in collibus saxosis. (ubi v. v.)

*3. D. armata, foliis pinnatifidis: lobis triangularibus planis divaricatis rectis spinoso-mucronatis: terminali proximis longiore; subtùs reticulatis venulis nudis, ramis calycisque laminis glabris, style basi pubescenti, stigmate subulato sulcato.

Hab. In Novæ Hollandiæ orâ australi; Lewins Land: in collibus saxosis. (ubi v. v.)

*4. D. falcata, foliis pinnatifidis: lobis subulato-triangularibus divaricatis falcato-recurvis spinoso-mucronatis: terminali proximis breviore; subtùs reticulatis venulis nudis, ramis pubescentibus, laminis calycis styloque longitudinaliter glabris, stigmate clavato exsulco.

Hab. In Novæ Hollandiæ orâ australi; Lewins Land: in collibus saxosis. (ubi v. v.)

*5. D. formosa, foliis elongato-linearibus pinnatifidis: lobis scaleno-triangularibus muticis planis subtùs niveis, involucris tomentosis: foliolis interioribus lineari-oblongis, receptaculo paleaceo. Tab. III.

Hab. In Novæ Hollandiæ orâ australi; Lewins Land: in sterilibus prope littora. (ubi v. v.)

6. D. mucronulata, foliis elongato-linearibus pinnatifidis: lobis isoscelo-triangularibus mucronulatis planis subtùs niveis, involucris tomentosis: foliolis interioribus linearibus mucronatis, receptaculo paleaceo, caule subsimplici.

*10. D. longifolia, foliis linearibus pinnatifidis longissimis acutis subtùs cinereo-tomentosis: basi attenuatâ integerrimâ; lobis triangularibus adscendentibus decurrentibus margine recurvis, involucri bracteis elongato-linearibus margine barbatis extùs glabris, calycis unguibus basi lanatis suprà pubescentibus: laminis pilosiusculis, caule tomentoso.

Hab. In Novæ Hollandiæ orâ australi; Lewins Land: in collibus saxosis. (ubi v. v.)

*11. D. tenuifolia, foliis elongato-linearibus pinnatifidis subtrancatis subtùs niveis: basi attenuatâ integerrimâ petioliformi; lobis triangularibus decurrentibus divaricatis margine recurvis, involucri bracteis tomentosis: exterioribus ovato-lanceolatis, calycis unguibus basi lanatis suprâ cauleque glabris.

Hab. In Novæ Hollandiæ orâ australi; Lewins Land: in ericetis. (ubi v. v.)

*12. D. pteridifolia, foliis pinnatifidis caule tomentoso longioribus: lobis linearibus acutis mucronatis margine revolutis basi dilatatis, involucri bracteis tomentosis ovatis.

Hab. In Novæ Hollandiæ orâ australi; Lewins Land: ad latera saxosa collium. (ubi v. v.)

*13. D. blechnifolia, foliis pinnatifidis caule tomentoso longioribus: lobis linearibus obtusis mucronulatis trinervibus margine recurvis basi simplici.

Hab. In Novæ Hollandiæ orâ australi; Lewins Land: prope King George's Sound. D. Archibald menzies. (v. s. absque fructificatione.)

Obs. Ad hoc genus retuli, ob summam affinitatem cum Dryandrâ pteridifoliâ, cujus vix varietas.