56 NATURAL HISTORY OF PLANTS. 



ones 1-4, opposite ; filaments subulate perigynous ; anthers 2-locular; 

 cells linear, lateral or subextrorse, base and apex free, rimose at margin. 

 Ovary free, inserted at bottom of receptacle, 1 -celled ; style short, 

 lateral, base decurrent in ovary (subgynobasic), apex stigmatiferous 

 penicillate; ovule subbasilar amphitropous. Achenes unequally 

 carinate, afterwards at apex emarginate-sub-2-lobed and with style 

 laterally mucronulate, lobes produced in bristles 2, 3, rigid, finally 

 adpressed reflexed. Seed linear, suberect, generally amphitropous; 

 albumen scanty, laterally produced between cotyledons ; radicle of 

 embryo inferior, cotyledons foliaceous, dissimilar, unequally replicato- 

 convolute. — Undershrubs ; odour alliaceous ; leaves alternate, entire, 

 petiolate; stipules small, herbaceous. Flowers in terminal axillary 

 racemes, 1-bracteate; pedicels short, rather thick, bearing 2 bractlets 

 inserted at a greater or less height {Tropical America). See p. 35. 



12? Monococcus F. Muell. — Flowers polygamous, 4- or more 

 rarely 5-merous (nearly of Petiveria). Stamens 10-12, free ; anthers 

 acute at apex, reflexed at summit of filaments, finally erect extrorse. 

 Ovary unequally ovate ; lateral penicillate style and ovule of Peti- 

 veria. Unsymmetrical achene, with style laterally mucronate, covered 

 with prickles on all sides. Seed suberect, much amphitropous ; 

 embryo (shorter) of Petiveria; albumen farinaceous, copious. — An 

 undershrub ; leaves, inflorescence, and bracts of Petiveria ; flowers 

 inferior female ; superior male ; a few hermaphrodite interposed 

 {Australia). See p. 37. 



13. Seguieria Lcefi,. — Flowers regular, apetalous, 5- or more 

 rarely 4-merous (Gallesia) ; sepals more or less petaloid, imbricated, 

 fructification reflexed. Stamens co, subhypogynous ; anther cells 2, 

 base and apex free, lateral or finally slightly extrorse or introrse, 

 marginally rimose. Ovary free ; ovule subbasilar, amphitropous ; 

 style eccentrically crested or winged, apex straight or incurved ; one 

 margin sulcate, stigmatiferous to 1 - a greater or less height. Fruit 

 samaroidal, outwardly \mdulate-nerved or slightly winged, crowned by 

 style accrescent in a large hatchet or shield-shaped veined wing. Seed 

 vertical ; testa membranous ; embryo peripheral, radicle inferior ; 

 cotyledons wide, foliaceous, more or less convolute-corrugate; 

 albumen scanty between the central folds of cotyledons. — 



