GENERA AND SPECIES. 
Mazus. 
Dwarf perennial; leaves obovate, irregularly toothed ; 
flowers blue, in a terminal one-sided raceme or solitary, 
on long peduncles 
Bueechnera. 
Scabrous-pubescent, upper leaves linear, flowers in slender 
spikes ... : E ¢ 
Limosella. 
Flowers stalked ; leaves linear to oblong, small; corolla and 
capsule exceeding the calyx 
Flowers sessile, lar ger leaves large, ovate; i OF cap- 
sule included.. ; se ade Bie 
Peplidium. 
Flowers axillary, sessile or areas SO ; fo Sener 
obtuse .. ; 
Flowers Soingeudusky aielieds dapeuie oveeal sats 
Glossostigma. 
Flower-stalks exceeding the minute linear-spathulate or 
oblong leaves; calyx usually 3-lobed; stamems as ene 
as corolla 
Flower-stalks shorter isi lenien® ee 4- libed: ; pee 
shorter than the ovate frin ged corolla-lobes 
Euphrasia 
Flowers a: hairy pein ; leaves sessile, 
serrate.. 4 
aceDs 
Flowers — area: hairy annual ; leaves seats 
Stemodia. 
Placentas consolidated into a single column. 
Glabrous ; leaves linear or lanceolate ; flowers solitary, 
sessile 
Placentas free; flowers stalked ; peteaantat bse(tenmbalt! 
Leaves lanceolate, serrate, sessile or stem- ary ai 
opposite or in whorls of three ... 
Leaves rhomboid-lanceolate, coarsely ialeds 
spicuously stalked si 
con- 
Gratiola. 
Flowers on long stalks; leaves lanceolate, glandular-hairy 
Flowers nearly sessile ; leaves orbicular to ovate-lanceolate 
153 
pumilio 
linearis 
aquatica 
Curdieana 
humifusum 
Muelleri 
Drummondii 
elatinoides 
Brownii 
scabra 
Morgania 
viscosa 
pedicellaris 
pedunculata 
Peruviana 
