250 Lxvii. EPACRIDE^. [Jndersouia. 



the bud, more or less bearded inside, at least at the base^ recurved at the 

 end or revolute. Stamens hypogynous, free from the corolla, the filaments 

 filiform or flattened • anthers attached below the middle or adnata nearly to 

 the base. Hypoj^ynous disk either annular and 5-toothed or 5-lohed, or 

 consisting of 5 distinct scales, sometimes very small (or quite obsolete?). 

 Ovary S-celled, with several not very numerous ovules, on placentas attaclied 

 to the base of the axis ; style usually long, inserted in a tubular depression 

 reaching to below the middle or almost to the base of the ovary ; stigma 

 small or slightly dilated. Capsule loculicidally dehiscent. — Shrubs. Leaves 

 with a shortly sheathing often membranous base, rigid, broad concave and 

 stem-clasping immediately above the base, acute acuminate or tapering into 

 an erect or spreading point, fiuely veined or almost veinless, the upper ones 

 passing into the floral leaves or bracts, the sheathing base of the stem-leaves 

 deciduous with them, leaving the stem smooth wdtiiout scars. Flowers either 

 solitary and terminal surrounded by numerous bracts, or solitary within each 

 floral leaf, sessile between 2 keeled braeteoles and collected in terminal heads. 

 Sepals of a difierent texture from the bracts. Corolla shorter thau or 

 scarcely exceeding the calyx, white pink or blue. 



The genus is limited to Western Australia. F. Mueller proposes to iinite it wit 

 Sprengella, of which, it has the foliage, but the shape of the corolla is very different, inoe- 

 pendeiitly of the aestivation, which is geuerally strictly valvate, or, if otie or two of the 

 lobes may he very slightly dilated near the end, "it ap])cars to me that they are rather indu- 

 plicatc than imbricate, or, at any rate^ very obscurely imbricate and much less so than e^en 

 in Sfprevgelia incarnata. 



Sect. T. Cephalanthesis.— i^^w;^?-^ iyi terminal heads, each one solitary ^^^^^^^^.f. 

 in the axil of the floral leaf or suhteuding bract, between 2 keeled and compicate 

 braeteoles. 



Floral leaves longer than the flowers. Corolla-tube contracted 

 above the ovary. Tall robust shrubs with lar^e leaves 

 (Sphincterostoma) . 

 Leaves erect, lanceolate. Filameuts much flattened , . . . 1- ^' colossea. 

 Leaves with long spreading points. Filaments scarcely flattened. 2. J. patncia. 

 Floral leaves as long as the flowers. Corolla-tube not'coutracted 

 above the ovary. Leaves with spreading points. 

 Flowers about ^ in. long. Floral leaves with lono; points. An- ,., 



thers linear, adnate 3. ^. grandtflora- 



Flowers about \ in. long. Leaves small, linear- subulate, the 



floral ones with long points. Anthers versatile 4. ^. setifoh^- 



Flowers under i in. long. Floral leaves with short points. 



Corolla scarcely hairy inside. Filaments fiat : anthers linear , ,^ 



adnate ' ^, A.involucrata. 



Corolla densely bearded at the throat. Filaments scarcely 



flattened ; anthers ovate, attached at the middle .... 6. ^. homalcsiom • 

 Floral leaves much shorter than the flowers. 



Leaves with spreading or squarrose points, often twisted. ,• -^rf. 



Sepals 3 to 4 lines long, convolute when dry 7. ^- sprengenoii^ 



Sepals 5 to 6 lines long, nearly flat when dry 8. .i. latiflora^ 



Leaves with erect or incurved triquetrous points. Floral leaves 

 very broad and shortly pointed. 

 Leaves with a broad base, rigidly acuminate. Corolla shorter ... 



than the calyx ; lobes bearded to the middle ..... 9- ^- gracifts. 

 Leaves linear or subulate, with a small broad base. Corolla- 



o 



