MLIII. IJRICA^CE^. 553 



with small balls of earth attached to them. All the species are readily propa- 

 gated by seeds, la\ers, or cuttings. 



The tbllowing characteristics of the genera, and of the groups which they 

 form, are deduced from Don's Miller, in which tlie whole order has been 

 remodelled by Professor Don : 



Sect. I. ri'ce^. 



Sect. Char. Calyx not connate with tlie ovary, except in Gaultherw. Disk 

 nectariferous, hypogynous. Fruit, in most, a capsule. Inflorescence, in 

 the bud state, naked. 



($ i. jEbi'ce^ norma'LES. Calyx and Corolla each with 4 Segments. Corolla 

 permanent. Stamens 8. Fruit with 4 Cells. 



jEnrcA -D. Don. Filaments capillary. Anthers not protruded beyond the 

 corolla; the cells short, opening by m\ oblong hole. Stigma peltate. 

 Leaves needle-shaped, scattered, or in whorls. 



Gypsoca'llis Sal. Filaments flat. Anthers protruded beyond the corolla 

 the cells opening by an oblique hole. Stigma simple. Leaves needle-shaped, 

 in whorls. 



Callu~na Sal. Corolla shorter than the calyx. Filaments dilated. Anthers 

 not protruded beyond the corolla, M'ith two small appendages at the base : 

 their cells end in a point, and open lengthv/ise. Leaves arrow-shaped at 

 the base, obtuse at the tip ; in transverse section triangular, imbricate in 

 4 rows. 



5 ii. Androme'd^E. Corolla ' deciduous. Stamens, in most, not protruded 



beyond the Corolla. 



A. The following 7 Genera have all been instituted out of the Genus Andromeda; 

 and all have 10 Stamens, 1 Pistil, and Fruit that has a locidicidal Dehiscence. 



Ajidro'med.4 L. Calyx with 5 acute segments. Corolla globose, with a 

 contracted 5-tcothed mouth. Filaments bearded. Anthers with short, 

 1-awned cells. Stigma truncate. Leaves linear lanceolate. Flowers in 

 terminal umbel-like groups. 



Cassi'op D. Don. Calyx with 5 leafy segments. Corolla bell-shaped, 

 5-cleft. Filaments glabrous. Anthers with short, tumid, 1-awned cells. 

 Stigma obtuse. Capsule with its valves bifid at the tip. Small heath-like 

 shrubs. Leaves imbricate. Flowers solitary. 



CASSA'NDR/i D. Don. Calyx bibracteate, 5-cleft. Corolla oblong, with a 

 contracted 5-toothed mouth. Filaments glabrous. Anthers with cells 

 elongated at the tip, and tubular there. Stigma annulated. Leaves with 

 short petioles, and elliptic oblong disks, that have peltate scales on both 

 surfaces. Flowers axillary, disposed as if in racemes along the terminal 

 parts of the branches. 



Zeno'bu D. Don. Calyx 5-toothed. Corolla bell-shaped, with a revolute 

 5-lobed limb. Filaments glabrous. Anthers with cells elongate, tubular, 

 and 2-awned at the tip. Stigma truncate. Leaves dilated, with the 

 margins usually toothed. Flowers in racemes. 



Lvo'n//} Nutt. t'alyx 5-parted. Corolla ovate or tubular, with a contracted 

 5-toothed mouth. Filaments short, fiat, downy. Anthers with membra- 

 nous cells that open lengthwise. Stigma obtuse. Capsule 5-cornered. 

 Flowers for the most part terminal, chsposed in racemose panicles. 



Leuco'tho D. Don. Calyx with 5 leafy segments. Corolla tubular, 

 toothed. Filaments fiat, downy. Anthers with short truncate cells. 

 Stigma large, capitate. Flowers white, in racemes. 



PfERis D. Don. Calyx 5-parted. Corolla tubular or ovate, with a con- 

 tracted, 5-toothed, revolute mouth. Filaments dilated, furnislied with 2 

 bristles at the tip. Anthers with short incumbent cells that open length- 



