376 Mr. J. Micrs o?i the Tribe Colletiese. 



gemma squamosa elongata parvis, congestis, glabris; pedun- 

 culo brcvi, tenui, calyce suburceolato, 4-dentato, dentibus 

 tubo Eequiloiigis ; petalis 4^ lineari-obloiigis, dentium calyci- 

 Borum dimidio longitudinis ; stamiiiibus totidem^ e basi peta- 

 lorum introflexis ; disco poculiformi, adnato, mavgine undu- 

 late, latiusculo, libcro; ovario depresso, in discum scmi-im- 

 merso, glabro, stylo brevissimo, incluso ; fructu parvo, 3-cocco. 

 — In Australasia et Tasmania. — v. s. in hcrh. Hook., Cox's 

 River et Port Jackson (A. Cunningham) ; in interioribus 

 (M'Artbur) ; Loddan (F. Miiller) ; Great Svvanport (Back- 

 house) ; Norfolk Plains, Tasmania (Gunn). 



This ])lant, in its general habit and floral characters, quite 

 agrees with all the foregoing species ; but it differs from them 

 in the more membranaceous epicarp of its capsule, which split* 

 near the margin of the cupuliform disk, and remains attached 

 to the resilient cocci, as in Collet ia and Ochetophila. It grows 

 in sandy places, forming a mean-looking bush, 2 or 3 feet high; 

 its branches are virgated and spinose; its spreading spines 

 measure ^ inch to 1|- inch ; the leaves are 4 to 6 lines long, 

 li line broad, on a petiole ^ line in length ; the peduncle is 

 slender, and 2 lines long; the calyx, including its segments^ 

 measures only 1 line in length and in diameter. 



4. Ochetophila. 



This genus, proposed, but not published, by Poppig, was first 

 described by Endlieher, in his Gen. Plant. (No. 5733), founded 

 upon the Sar/eretia trinervis of Gillies, and comprising two other 

 plants from Chile, which were designated by name only, and are 

 still undescribed. It is distinguished from Discaria by many 

 slight characters, among which is the form of its peculiar sti- 

 pules. In the latter genus, the petiole springs from the sinus 

 between the teeth of each retinaculoid stipule, the margins of 

 which are connected with those of the opposite stipule by a 

 transverse line. In Ochetophila, the petioles of the opposite 

 leaves spring directly from the branch ; they widen at their base, 

 and embrace the stem so far that their edges meet together in 

 the middle of the node, giving it an articulation of a different 

 character to that in Discaria : in each axil above the base of the 

 petiole is seen a broad, concave, somewhat erect, dark red, scale- 

 like stijjule, which is bifid at its apex, with ciliated margins. 

 The structure of its flower much resembles that of Discai'ia, and 

 the shape and formation of its fruit arc similar : its petals, how- 

 ever, are proportionally larger, more cucullate, and they often 

 comjilctoly hide the stamens ; the free portion of the filaments 

 is comparatively longer ; the disk is like that of Discaria^ The 



