266 flsttish or very slightly convex on the top, 5-celled, T,vith the 

 plecentfls on the floor of the cells. Cpnsule shortly obconic , 

 flfttnsh ?t the t0T>, anfl the sutures s] i^htly raised at the central 

 rsprt only, with five valves snd cells; valves recurving v/h en ex- 

 ppnded, ■'■^3 th t^e exn ending-keels contiguous into e very stout, con- 

 vex, central keel, with bropd mrrginftl v.lngs ths^t &re not united 

 in r»?irs between the valves; cells imperfectly roofed v.dth smeill, 

 raenbrrnous an-^ flexible ce!l.l-v;in£s, whose edges do not raeet, tnd 

 ^vithout e tubercle on the outer v/ell. Sr>eds not seen. 



I^e only known si-'ecies is 3. li'^lfmsii, N.S.Bp. , r nctive of 

 Li-*: tie Neiri' oualand. 



The aame is derived from the Greek, ste;ros, stiff, and pettlon, 

 a T^etrl, in allusion to the sti^f petals, a. character that is other- 

 wise onlv known to occur in this family of plants in the genus 

 '^act;"-lorsis , ne^^r which -^or the present I place it, although its 

 foliage is quite different in type from the leaves of that unique 

 plent. ?ig. 130 represents a dir->gra.ni o'' the struct\3.re of the flower, 

 but v,n th only tivo series o:^ stamen sshown in order to maker their 

 arrangement clearer. 



l.~ 3. lillensii, N. S. Br. (5'ig.l31.)~ Plant tufted, 

 2-3 inches high, glabrous. Leaves in 2-5 pairs to a growth, sub-e- 

 rect, to p.scenaing-sprerding, 12-20 lines long, 3-5 lines brocd, end 

 3-4 lines thick at the base, slenderly fin er-like, slightly narrow- 

 ing upwards to a very obtuse apex, slightly convex on the face, vath 

 obtuse or rounded ed-res, very rounded and scarcely at all keeled 

 on the bpck, nor compressed at the apex, firm, smooth, not dotted, 

 glaucous- green or v*iitish-green. Peduncle erect, |-1 inch long, 

 compressed end 2-edged, about If-line brofd, of a much paler green 

 than the leaves. Brpcts about six lines long, united at the base, 

 resembling reduced leaves. I'edicels about 3 lines long, _ erect. 

 Cp^->-<Ty: r^roduced above tne ov?ry into a slight tube ebout i-line long, 

 with the overy-nart som^ewhat ovoid-conicnl, and the lobes like re- 

 duced leaves, the t^'^o longer rre 5-6 lines long and the others 3-4 

 lines lono-, all escending-STre^ding vhen exT^pnded. Corolla 6-9 

 lines in dipmeter, not c^osin-'^ after it hrs expanded, but remaining 

 open day and night, for three vreeks or more, not scented; outer 

 petals rhout 4^ lines long and |--line broad, arched-sprecding and 

 shorter than the calyx-lobed, narrowly linear-cunetae, sub-acute 

 or obtuse with a smrll roint at the apex; the inner gradually shorter, 

 ncrrc-er, filiform and acute, less sprecding, and the innermost conni- 

 vent, filling up the central pert of the flov/er so as to mcke it 

 flat at the tor> and concealing the stamens, all of them quite stiff 

 to the touch and united at the base into a very short tube about i- 

 line long, white, with a faint yellmwish tinge at the central part 

 of the flower; the innermost or staminodes are densely bearded and 

 matted topr^ther rt the middle. Stcnens 1-1^ lines long, filsments 

 very slender at the deflexed tortuous '-^art, white, anthers j'^ellov.". 

 Stigmas 1 line long, stout, subulate, smooth, and green. G-lands 

 none or obscure. Ovr>ry green on the top. Crpsu.le 3-3r;- lines in 

 diameter v;hen closed and 5 lines when expanded, dull brov/n within, 

 with the keels and marginals v.dngs of a lighter brovm, othervdse 

 as f^escribed under the genus. 



Little i-amaqualrnd J Locality unkno--n, ^earson, Lilians b705. 



This plant was sent to Sngiend in 1910 or 1911 by *'rofessor 

 ■teoT-con, but never fla';ered. Lgst year I received it from — r . ^>. 3. 

 Pillans, and as it has flov'erd, I am nav able to describe it. In 



