414 LXXXIX. HALORAGE^J. 



SEEDS inverted, testa crustaceous, hilum naked, or covered with a fleshy cnpule. 

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



radicle conical, superior. 



PRINCIPAL GENERA. 



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



Brvniaccee approach Hamamelidecc, Cornea, Araliacea, and Umbelliferee, 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 aestivation of the petals is [usually] 

 valvate. Bnmiaceee have besides, in the genus Raspailia, a quite exceptional character in their ovary, 

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



LXXXIX. IIALORAGEJE. 



(ONAGRARUM genera, Jussieu. HALORAGE^E, Br. CERCODIACE^E, Jussieu. 



HYGROBLS, Richard.) 



CALYX superior. PETALS inserted on the calyx [or epigynous] alternately with its 

 lobes, 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 I-ovuled cells ; 

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



Aquatic HERBS, or terrestrial [HERBS or] UNDERSHRUBS. LEAVES usually opposite 

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

 usually pectinate, rarely entire (Myriophyllum) ; stipules 0. FLOWERS 3 (Haloragis, 

 Hippuris}, or monoecious 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) ; 

 fllaments 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 longe.r, next the hilum, superior. 



PRINCIPAL GENERA.' 



Hippuris. Myriophyllum. Haloragis. Serpicula. Proserpinaca. Meionectes. 



1 The two anomalous genera, Gunncra and Callitriche, Hooker fil., are treated as distinct natural orders in 

 which have been included in this order by Bentham and this work. ED. 



