108 XL. LEGUMINOS^, [PulltMa. 



The genus is limited to Australia, presenting considerable diversity in foliage, inflores- 

 cence, and calyx, and closely allied in character to the other Fodalyriece with 2 ovules 

 and strophiolate seeds, yet not generally difficult to distinguish. From Gastrolohium it 

 differs chiefly in habit, in the persistent bracteoles, and the more sessile, less turgid pod; 

 from Latrobea^ Eutaxia, and I)iUwynia, which are even closer connected with it, the brae- 

 teoles close to or upon the calyx afford the most prominent distinction, although accompanied 

 usually by other slight diflferences in habit or in flower. In the following distribution of its 

 numerous species, the sections proposed, founded on foliage and inflorescence, are perhaps 

 scarcely worthy of ranking higher than so many series. 



Sect. L Enpultensea. — Leaves alternate, with recurved or revolute viargins. Ovar) 

 guile sessile {except in P. conferta). 



Bracteoles adaate to (apparently inserted on) the calyx-tube (except 

 in F, pycnocepkala f). 

 Flowers in dense, terminal, sessile heads, surrounded by imbricate 

 stipular bracts, the inner ones longer than the pedicels. 

 Stipules minute. 



Leaves cuneate-oblong or broadly -cune ate, rounded or trun- 

 cate at the end, flat or nearly so, glabrous or silvery- 

 white underneath. 

 Leaves i to IJ in. long. Plower-heads rather large . . 1. P. daphioides. 

 . Leaves under \ in. long. Flower-heads small .... 2. P. stricia. 



Leaves hnear^ obtuse or retuse 3. P. retusa. 



Leaves linear or lanceolate, acute or almost pungent ... 4. P. Bent/iamiL 

 Stipules conspicuous, often 1 line long or more. 



Leaves shortly obovate, coriaceous, shining above, densely 



silky-white underneath 5. P. pycnocepkala* 



Leaves narrow-oblong, obtuse. Flower-heads large, silky- 

 hairy. Petals persistent * .... 6. P, mj/rtoides. 



Leaves oblong or elliptical, aristate. Petals deciduous. 



Whole plant softly villous 7. P. mucronah. 



Leaves linear. ' ' ' 



Leaves nearly sessile, obtuse, or with a fine point. Flower- 



heads softly villoua. Bracts deciduous . . • , . 8. P. polifolia. 

 Leaves on petioles of 2 to 4 lines. Bracts few .... 9. P. petiolaris. 

 Leaves Imear-acute or rarely oblong. Bracts persistent and 

 completely covering the calyxes, glabrous or rarely 

 shghtly silky \^, P. paleacea, 



Flowers few or in small heads, the bracts shorter than the pedi- 

 cels. Leaves under ^ in, lons^. 



leaves ovate lanceolate or oblong 1 1 . P. Ounnii* 



Leaves obovate or broadly cuneate, usually emarginate or 2- 



^"oed 12. P. scahra. 



Leaves linear-cuneate, obtuse or truncate . . 13 P. microphj/lk* 



Bracteoles close under the calyx, but free from it or scarcely 'aduate'. 



Leaves small, obovate, very silky underneath, glabrous above . . 5. P . pycnocepUU- 

 Leaves linear. ^ 



Erect shrubs. 



Flowers sessile in smaU heads. Leaves under \ in. long. 



Calyx with a large upper lip ... . 14 P. Brummondii- 



riowcrs in terminal umbels. Leaves about 1 'in.iouK. 'Calvx- 



iobes nearly equal ° ' ^^ P. phiifoUa. 



Prostrate shrubs. Leaves small, 

 riowers terminal, on filiform pedicels. Stipules distinct . . \Q. P. pedunculats. 

 Flowers axillary. Pedicels shorter than the calyx. 



Stipules distinct. Calyx about 3 lines long, the large 

 upper lobes free l^, p. conferta. 



Stipules none. Calyx under 2 lines, the large npne'r lobes 

 ttaited . 1%. r. diffusa. 



P# 



