GRASSULA, Linn., sect. TILLAE01BEAE, Schonl. 49 
Africa it is represented by a distinct robust variety which Engler 
mistook for a variety of Cr. Vaillantii. 
Diels has identified with it some specimens found by him in Aus- 
tralia 1 , and judging from his dried specimens which I have seen, I 
agree with him that its range extends to Australia. The floral 
structure is, as far as I can judge, exactly the same in the Australian 
and S. African specimens. 
Forma fluitans. Stem long and floating, lower leaves linear elongate, very 
far apart, upper spathulate. 
Retreat Vley, VI, 96, Wolley Dod, 1218 ; Flats beyond Rondebosch, 
VIII, 95, Wolley Dod, 270 ; Sandhills, Capeflats, x, 96, Wolley Dod, 
1781 ; Salt River flats, VII, 83, Wilms, 3212 ; C. b. sp., Lalande ; Liesbeck 
River, x, 1815, Bergius ; ibid, x, 1816, Bergius (sub Tillaea aquatica ) ; 
C. b. sp., Mund et Maire ; in water ditches near Capetown, 1824, 
Ludwig; in stagno pr. Zoutriver, xi, 1815, Bergius; Paarlberg, Wilms 
3207 ; on moist spots near the banks of the Zwartkops River, Z. 653, 
2510, E. and Z. 1844, 1845. 
Forma parvifolia. Leaves except the uppermost 2 — 3 mm. long, lanceolate 
acute, recurved. 
C. b. sp., Drege. 
Forma obovata. Lower leaves spathulate, upper obovate. 
C. b. sp., Drege, 6877b; Mooreesburg, xi, 84, Bachmann, 737 ; in 
the Zwartkops River, Z. 922; Murraysburg, vm, 78, Tyson, 70; 
Burghersdorp, X, 08, Pocock, 34 ; Zwartkei, Mrs Barber, 30 ; Pretoria, 
vn, 83, Wilms, 594 ; Belfast, Jenkins (Transvaal Mus. Herb.) 6780. 
Forma amphibia, Leaves equalling or exceeding the internodes, the medial 
and lower linear squarrose, the upper spathulate. 
Van Rhynsdorp, 100 m., ix, 00, Diels, 420 ; Camp Ground, Cape 
Peninsula, Wolley Dod, 269 ; Redhouse, Mrs T. V. Paterson ; Middle- 
drift, Mr F. S. Salisbury ; at the base of the Boschbe’rg, ix, 2500 ft, 
MacOwan, 250. 
(?) Forma filiformis. All the leaves linear or linear oblong. 
Wynberg fiats, vil, 96, Wolley Dod, 1262 ; on bridge beyond 
Campsground, vil, 95, Wolley Dod, 271, 272; in stagnant water near 
Wynberg, vm, 92, Schlechter, 1528; Platteklip, x, 98, 3000 ft, 
MacOwan in Herb. Austr. Air. 1857 ; in damp places on the plain 
on Table Mountain (Alt. v.), Aug., E. and Z. 1849 ; in damp places at 
Platteklip, Oct., E. and Z. 1850. 
E. and Z. 1843 (in stagnant water near Greenpoint = Hel. natans 
/3 minus, E. et Z.) seems to belong to this form (= Bulliarda jilifor mis, 
E. et Z.) and seems to be identical with Z. 650, also with Z. 634 (ii 
1 “Avon above Newcastle in a small waterliole, 175 m., Diels, 3931. 
