416 NATURAL HISTORY OF PLANTS. 



cylindrical, terminal or lateral, strobiliform spikes ; bracts 2-flowered, 

 bractlets 2 to superior flowers (Australia). See p. 390. 



22. Dryandra R. Br. 1 — Flowers regular, hermaphrodite ; perianth 

 leaves equal, free or connate at base, dilated at antheriferous apex. 

 Anthers 4, subsessile, shortly apiculate. 2 Hypogynous squamules 4. 

 Germen sessile ; ovules 2 collateral, after impregnation coherent and 

 usually forming a spurious dissepiment ; style slender, often arti- 

 culated at base, usually straight ; apex cylindrical or clavate, smooth 

 or sulcate, stigmatiferous. Follicle woody ; dissepiment membra- 

 nous free 2-fid, or ; seeds winged at apex. — Small trees or shrubs ; 

 branches scattered or umbellate ; leaves alternate coriaceous, ser- 

 rated, lobed or pinnatifid, more rarely entire; flowers in terminal 

 or lateral, sessile involucrate capitula (South Australia 3 ). 



23 ? Hemiclidia R. Br. 4 — " Flowers regular, hermaphrodite. Pe- 

 rianth 4-fid ; lobes concave antheriferous. Hypogynous squamules 4. 

 Germen 1 -celled; testa? coherent into a dissepiment; dissepiment 

 arachnoid simple (not separable into 2 layers), separating with the 

 abortive ovule from the other on ripening. Follicle subcrustaceous, 

 bearded all over. Seed 1, ventricose wingless. — A shrub ; leaves 

 and habit of Dryandra ; involucre imbricate ; receptacle of capitulum 

 flat " (Australia"). 



III. PERSOONIEiE. 



24. Persoonia S.\i. — Flowers regular hermaphrodite. 6 Perianth 

 4-merous, rarely gibbous ; leaves free or connate to a variable 

 height ; margins valvate or slightly involute. Stamens inserted 

 half way up perianth leaves; filaments filiform, usually short; 

 anthers linear exserted ; apiculated by produced connective, or sub- 

 in uticous. Hypogynous glands 4, free. Germen stipitate or sessile ; 



1 In Trans. Linn. Soc, x. 211, t. 3; Prodr., Fragm., v. 185; vi. 93.— Bentit. & F. Muelt., 

 396; Suppl., 37 (nee Thunb.).— Endl., Gen., Fl. Austral., v. 562. 



n. 2158.— Meissn., Prodr., 467, 700.— Josephia * Prodr., Suppl., 40.— E>DL., Gen., n. 2159. 



Kn. & Salisb., Prot, 110. —Meissn., Prodr., 481. 



2 Pollen elliptical as in Banksia, according to * Species 1. H. Baxteri R. Be., Prodr., 

 R- Be. Suppl., 40.— Meiss.v., in PI. Preiss., i. 691. — 



3 Species about 50. Lindl., Swan Biv., 33. Bot. Reg., t. 1455.— Dryandra falcata R. Be., 

 — Kipp., in Hook. Journ.(lSoo), 121.— Meissn., in Trans. Linn. Soc, x. 213.— Benth. & P. 

 in Hook. Journ. (1852), 210 ; (1855), 120; in Muell., Fl. Austral., iv. 5f>7. 



Plant. Preiss., i. 265, 595 ; ii. 267. — F. Muell., « Very rarely polygamous. 



