414 LXXXIX. HALOEAGE^. 



Seeds inverted, testa crustaceons, Hilam naked, or covered with a flesliy cnpule. 



Embryo minute, straight, at the top of a copious fleshy albumen ; cotyledons short ; 



radicle conical, superior. 



PRINCIPAL GENEEA. 



Berzelia. *Brunia. Raspailia. Berardia. Staavia. Linconia. 



Bruniaceis approacli Hamamelidecs, Cornece, Araliacecs, and Umbelliferts, in the polypetalous and 

 isostemonous corolla, epigny, solitary or geminate pendulous anatropous ovules, and albuminous embryo ; 

 but in all these families, independently of other differences, the sestivation of the petals is [usually] 

 valvate. BruniacecB have besides, in the genus Maspailia, a quite exceptional character in their ovary, 

 superior to the calyx, and inferior to the petals. [The properties of Bi-uniacete are quite unknown.] 



LXXXIX. BALORAGEjE. 



(Onagearum genera, Jussieu. — HALORAGEiE, Br. — CercodiaOe^, Jussieu. — 



Htgrobi^, Richard.) 



Calyx superior. Petals inserted on the calyx [or epigynous] alternately with its 

 Iches, sometimes 0. Stamens inserted with the petals, equal or double in number to the 

 calyx-lobes, sometimes reduced to one. Ovary inferior, of one or several 1-ovuled cells; 

 OVULES pendulous. Embryo straight, in the axis of a fleshy albumen. 



Aquatic herbs, or terrestrial [herbs or] undershettbs. Leaves usually opposite 

 or whorled {Myriophyllum, Hippuris), simple, entire or toothed, the submerged 

 usually pectinate, rarely entire (Myriophyllum) ; stipules 0. Flowers 2 {Haloragis, 

 Hippuris), or moncecious through arrest {Myriophyllum, Hippuris), regular, incon- 

 spicuous, sessile in the axil of the leaves, solitary or fascicled, often 2-bracteolate at 

 the base, sometimes whorled in a spike, rarely pedicelled, sometimes panicled [or 

 racemed]. Calyx superior, usually 4-fid or -partite, sometimes truncate or almost 

 wanting. Corolla 0, or petals inserted on the calyx, alternate with its segments, 

 usually longer, sub-concave, valvate or imbricate in aestivation, spreading after 

 flowering, and deciduous. Stamens inserted with the petals, usually equal and 

 opposite to the calyx-lobes, or double in number, sometimes reduced to one {Hippuris) ; 

 j^Zamewfe filiform ; anthers introrse [or dehiscence lateral], 2 -celled, oblong or ovoid, 

 basifixed {Myriophyllum, Haloragis) or dorsifixed {Hippuris), dehiscence longitudinal. 

 Ovary inferior, of 2-3-4 1-ovuled cells, rarely 1-celled {Hippuris) ; styles as many as 

 ovules, often short or nearly ; stigmas tomentose or penicillate ; ovules pendulous 

 from the top of the cell, anatropous. Fruit nutlike, often crowned by the calyx- 

 limb, 2-3-4-celled, or 1-celled normally or by arrest. Seeds inverted, testa mem- 

 branous. Embryo straight, in the axis of a more or less fleshy albumen ; cotyledons 

 short, obtuse ; radicle longer, next the hilum, superior. 



PRINCIPAL GENERA." 

 Hippuris. Myriophyllum. Haloragis. Serpicula. Proserpinaca. Meionectea. 



' The two anomalous genera, Gunnera and Ccdlitriche, Hooker fll, are treated as distinct natural orders in 

 •which have born included in this order byBenthamand this work. — Ed. 



