MVUTALES.] 



CHAMyELAUCIACEiE. 



21 



Order CCLXXVI. CHAM/ELAUCIACE^— Fringe Myrtles. 



Chamaelaucieae, DC. in Diet. Class, xi. ( .82(3) ; Prodi: 3. 20S ; liartliug Ord. Ant. 331 j Kd. prior, 2 45 ; 

 Eiidl. Gen. p. 1224 ^ Mcisner Gen. 107 ; Schauer in Nov. Act. xix. Suppl. 157. 



Diagnosis. — Myrtal Exogens, loith a l-celled ovary, ascending ovules, doited leaves, and 

 the embryo fused into a solid inass. 



ovsts. 



Leaves evergreen 



A 



acerose, or flat. 



Small bushes, ofteirresembling Heaths, with all their parts abounding in glandular oily 



Flowers 0, in racemes, corymbs, or 

 heads, yelhjw, red, violet, or 

 white. Calyx adhering to the 

 ovary, with 4- 5 lobes, wliieh are 

 either herbaceous and scaly, or 

 thin, membranous, and broken 

 up into fringes or extended into 

 bristles, as in the pappus of Com- 

 posites. Petals as numerous as 

 the divisions of the calyx, entire, 

 or fringed, or feathery, often of 

 a dry texture. Stamens definite 

 or 00, stationed in one or more 

 whorls on a fleshy disk, epigy- 

 nous, or adhering to the sides of 

 the tube of the calyx ; often par- 

 tially sterile and scale-like, ligulato 

 or petaloid ; filaments subulate, 

 occasionally forked ; connective 

 thick, fleshy, of various forms, 

 continuous with the filament, and 

 carrying the cells upon its inner 

 face ; cells opening longitudinally 

 or by pores. Ovary l-celled, 

 united to the sides of tlie calyx ; 

 style simple ; stigma simple ; ovules anatropal, 2 or more, or as many as 1 0, inserted 

 laterally, and either ascending or attached to the side of the ca\'ity. Fruit a di-y inde- 

 hiscent pericarp. [Seed without albumen ; embi'yo orthotropal, homogeneous, with no 

 distinction of cotyledons, radicle, and plumule. — Schauer.] 



Up to the present time these have been regarded as a section of the Order of M}Ttle- 

 blooms ; and there can be no doubt of their close relation. But it appears advisable to 

 distinguish them on account of their very peculiar aspect, which resembles nothing among 

 Myrtleblooms except some Bteckias, their remarkable abortive stamens, their simple 

 ovary, which never indicates a trace of being formed by the adhesion of more carpels 

 than one, and their pappose calyx. The latter character brings them extremely noiir 

 Composites, notwithstanding their disunited petals and anthers. The relation that 

 has been found between Myrobalans and ]\Iyrtleblooms more especially applies to tliese 

 plants. 



They are beautiful little bushes, abounding in many parts of New Holland, but in only 

 a very fiew instances reaching the northern coast. 



They participate in the fragrance of the fohage of Myrtleblooms : but nothing is 

 recorded of their uses. 



GENERA. 



CCCCLXXXI. 



Calytrix, Labill. 



Calycothrix, Labill. 

 Lhotskya, Schauer. 

 Thryptomene, Endl. 

 Pileanthus, Labill. 



Verticordia, DC. 



Calymmatanthus, Sch. 



Diplachne, R. Br. 

 Chrj'sorrhoe, Lindl. 

 Chamaelaucium, De^. 



Ilomoranthus, A. Citnn. 

 Euosmanthiis, A.Gunn 

 Darwinia, liudg. 

 Poly zone, Endl. 

 GenetyUis, DC. 



I lledaronia, Lindl. 

 P'rancisia, Endl. 

 I Actinodium, Schauer. 

 i Triphelia, K. Br. 

 I?? Bartlingia, jB»oh«7h. 



Numbers. Gen. 15. Sp. 50. 



Myrtacea. 

 Position. — Asteracece. — Ciiam.elauciace.e.— Combretacese. 



Fig. CCCCLXXXT.-l. Calytrix 



2. a section of its flower ; 3. of Genetyllis ; 4. of Darwinia. 

 3 A 



