rROTEACK.i:. 



389 



Molloya, a doubtful aud little-known genus; rites ; Carnarvonia with 

 its digitate leaves ; and Xylomelum (fig. 22G), possessing regular poly- 



Grevillea Gaud icli audi. Hakea microphylla. Xylomelum piriform?. 



Fig. 223. Fig. 224. Fig. 225. Fig. 226. 



Flower before libera- Flower. Flower (|) Open fruit, 



tion of style. 



ganious flowers, two anatropous ovules, and opposite leaves. Ilelicia, 

 though very close to Xylomelum, differs in its fleshy indehiscent fruit. 

 Lambertia has regular flowers formed like those of certain Grevilleas ; 

 but it is distinguished by its two ovules being nearly orthotropous 

 descending, the micropyle still looking downwards ; and we may 

 remark that this is a constant character in the order, the causes of 

 which we have investigated elsewhere. 1 The micropyle is always 

 inferior, whether the ovules are ascending and more or less completely 

 anatropous, or orthotropous or nearly so, and consequently descend- 

 ing ; the base of the ovary is surrounded by four leaves, alternate with 

 the perianth-leaves. Roupala approaches Lambertia by its quite 

 orthotropous ovule ; its fruit is a follicle opening longitudinally. 

 Andripetalum has the flowers of Roupala with a slightly fleshy 

 drupaceous indehiscent fruit. Guevina has the same orthotropous 

 ovules, and a nearly dry indehiscent fruit ; but the flower is slightly 

 irregular, the perianth being inserted obliquely on the receptacle, with 

 the two anterior leaves attached lower down than the posterior p>air. 



Trans. Mort. Soc. (1852), 14; Swan Siv., 36.— 

 Schlechtl., in Linnaa, xx. 5S6. — Hook., in 

 Mitch. Exp. Trop. Austral., 341 ; in Hook. 

 Journ. (1852), 14. — Meissn., in Linnasa, xxvi. 

 354; in Hook. Journ. (1852), 185; (1855), 73 ; 

 in PI. Preiss., i. 536 ; ii. 252. — Br. & Ge., in 

 Ann. Sc. Nat., ser. 5, iii. 199. — F. Muell., in 

 Trans. Phil. Soc. Vict., i. 21 ; in Linnaa, xxvi. 



355 ; PL Ear. Melb. (1855), 50 ; Fragm. Phyt. 

 Austral., i. 135 ; iii. 1 15 ; iv. 8 1, 1 29, 176 ; v. 25, 

 90,152; vi. 92, 205, 246.— lir.vrn. a F. Mr. i i ., 

 Fl Au.str., v. 417.— Pot. May., t. 1272, 2661, 

 3798, 5007. 



1 Memoire stir les Ovules des Proteacccs, in 

 Adansonia, ix. 250. 



