406 LIII. HALORAGEE (OLIVER). [ Gummera. 
putamen.—Scapigerous herbs. Leaves radical, petiolate, reniform 
cordate or ovate, often rugose. Staminate flowers crowded towards 
the extremity of the inflorescence. 
A small genus, very local but widely spread, especially in the Southern hemisphere. 
1. G. perpensa, Linn.; DC. Prod. xvi. 2,598. Leaves rotundate- 
reniform with a deep basal sinus dilated at the insertion, the lobes 
rounded and overlapping the ae below, unequally crenate-dentate, 
shortly appressed-hirsute on both surfaces, about 61m. in diameter In 
our only specimen, the sinus about 2-24 in. deep ; petiole 10 in. or more. 
Panicle 20-24 in., spiciform, branches slender, successively shorter 
from below, erect, the lower compound. Calyx-teeth of pistillate 
flowers 2, fleshy, triangular, opposite; of the staminate flowers vari- 
ously ey Sneed 1—4-toothed. Petal when present linear. Anthers 
2 or 1 subsessile.-—Bot. Mag. 2376. 
Wile Land. Abyssinia, Dr. Roth! 
Also at the Cape and Natal. 
3. CALLITRICHE, Linn.; Benth. et Hook. f. Gen. Plant. i. 676. 
Flowers minute, axillary, solitary, achlamydeous, unisexual. Male 
flower: Stamen 1, often bibracteolate, filaments filiform ; anthers as 
broad as long. Ovary 4-lobed, 4-celled, ovules solitary ; styles 2, subu- 
late or filiform. Fruit 4-lobed, 4-seeded, small, indehiscent.—Gla- 
brous herbs, aquatic or limnophilous; stems often elongate, slender. 
Leaves opposite, entire, linear or spathulate. 
A small cosmopolitan genus. 
1. C. stagnalis, Scop. ; Hegelmaier, Monog. Callitriche, 58. Leaves 
obovate- or oblanceolate-spathulate, when growing in water the upper 
usually forming a rosette. Fruit sessile or subsessile, nearly orbicular, 
compressed tetraquetrous, the margins distinctly narrowly winge 
(stigmas persistent, Hegel. l.c.). 
Nile Land. Abyssinia, Schimper. 
Widely spread in the Old World. I have not myself seen Abyssinian specimens. 
Orver LIV. RHIZOPHORACE. (By Prof. Oliver.) 
Flowers usually hermaphrodite, regular. Calyx more or less adhe- 
rent to the ovary or free, limb 4—14-toothed -lobed or -partite ; lobes 
valvate, usually coriaceous and persistent. Petals as many as calyx 
lobes, perigynous or subhypogynous, apex frequently 2-0 -fid, margins 
often conduplicate. Stamens 2-4 times as many as petals, epi- peri OF 
subhypogynous, inserted below or upon the margin of the disk ; fila- 
ments free, various; anthers 2-celled, dehiscing longitudinally (multi- 
locellate in khizophora). Ovary more or less adherent or free, 2-5- 
celled or dissepiments partially suppressed. Ovules geminate, collate- 
ral, pendulous (or solitary in Anvsophyilea); style 1 simple (or 4 ™ 
