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Descriptions of Ne^v Species of South 

 Australian Plants. 



Bj Professor Ealph Tate, E.G-.S., T.L.S., &c. 

 [Read October 7, 1884.] 



Sisymbrium procu:\ibexs. 



A small glabrous annual, with a few prostrate Lrauclies 

 Tadiating from a leafy rosette, usually under six inches 

 diameter. Radical leaves on long petioles about one inch long, 

 oblong, coarsely toothed or shortly pinnatifid ; stem leaves 

 few, lyrate-pinnatifid to spathulate. Flowers small, few, 

 yellow. Fruiting racemes of the lateral branches about one 

 inch long with slender spreading pedicels ; the pedicels about 

 two and a-half lines long, shorter than fruit ; from the radical 

 rosette there arise a few flowers borne on erect pedicels, the 

 fruiting pedicels longer than the pods. Pod broad, about six 

 inches long, blunt at the top, and slightly attenuated at the 

 base, tipped by a short broad persistent stigma. A^alves nearly 

 flat, with a prominent midrib, and conspicuously longitudinally 

 and reticulated veined. Sepals spreading, overtopping the 

 yellow petals. Seeds small, ovate, moderately compressed. 



Claypans near Termination Hill, LakeTorrens Plain, flower- 

 ing in September. jB. Tate. 



Among Australian congeners, S. procnmhens approaches ta 

 8. nasturtloides, from which it differs in habit, form of leaves, irt 

 the spreading not erect fruiting pedicels, stouter pods, &c. 



Iv C n I A P E NT A T R P I S , 



A perennial, with a hard, almost woody base, and a herba- 

 ceous erect stem of about two feet high, with short ascending 

 branches not usually exceeding six inches, l^ranches and stem 

 clothed with a white dense cottony wool, amongst which are 

 long soft spreading hairs ; young foliage pilose. Leaves 

 rather crowded, sessile, alternate, varying from linear and 

 semiterete to linear-s])athulate, obtuse, rather thick, a-half to 

 three-quartei's of an inch long. Flowers solitary, axillary. 

 Fruiting perianth, with hard obconic tube two lines long, with 

 five very prominent vertical membranous wings, bordered by 

 nn incomplete horizontal membranous expansion of four to 

 five lines diameter ; summit of the perianth [shortly ])yramidal. 

 The five lobes closing over the fruit are pilose at their tips. 



Calcareous loamy soil between Mounts Play fair and Parry, 



