TETRANDRIA. 



(8) 



TETRANDRIA. 



2. Such as have their Flowers monopetalous on a double fruit, 



and the Style bifid. 



HEDYOTIS Corolla monopetalous, funnel-shaped ; capsules 

 two-celled, many-seeded, inferior. 



SPERMACOCE, Button] Wood Corolla one-petalled, funnel- 

 shaped; capsules two, combined, two together. 



SHERRARDIA, Little Field Madder Corolla one-petalled, 

 funnel-form, superior; seeds two, three-toothed. 



ASPERULA, Woodroof Corolla one-petalled, funnel-shaped ; 

 seeds two, globular. 



DIODIA Corolla one-petalled, funnel-form; capsule two- 

 celled, two-seeded. 



KNOXIA Corolla one-petalled, funnel-form; seeds two, 

 grooved ; calix, one leaflet larger. 



MANETTIA Calix eight-leaved ; corolla four-cleft ; capsule 

 inferior, two-valved, one-celled ; seeds imbricate, orbicular, 

 with a central seedlet. 



HOUSTONIA Corolla one-petalled, funnel-form; capsule 

 superior, two-celled, two-seeded, (according to Gsertner, 

 three or four seeds in each cell.) 



GALIUM, Ladies' Bed Straw Corolla of one petal, flat, 

 superior; seeds two, roundish. 



CRUCIANELLA, Petty Madder Calix two-leaved ; involucre 

 two or three leaved, chaffy ; corolla one-petalled, funnel- 

 form, with a filiform tube and tailed border; seeds two, 

 linear, inferior, naked, bald. 



RUBIA, Madder Corolla one-petalled, bell-shaped ; berries 

 two, combined, one-seeded. 



EMBOTHRIUM Petals four; stamens inserted into the bor- 

 der ; follicle containing several winged seeds. 



HYDROPHYLAX Calix four-parted; corolla funnel-form; 

 fruit ancipital, one-seeded. 



HARTOGIA Calix five-cleft ; petals four, spreading; drupe 

 ovate, enclosing two seeds. 



ACNA Calix four-leaved ; corolla four-petalled ; berry dry, 

 inferior, one-seeded, with spines bent backwards. 



BANKSIA Calix four-cleft, inferior; corolla four-parted; 

 tube very short; border very long, linear-lanceolate ; an- 

 thers sessile, in the cavity of the parts of the corolla ; cap- 

 sule two-seeded, one or two celled, two-valved. 



ORIXA Petals four, lanceolate, flat; calix four-cleft; 

 stigma capitate ; capsule uncertain. 



OTHERA Calix four-parted ; petals four, ovate, flat; stigma 

 sessile. 



SKIMMIA Calix four-parted; petals four, concave; berry 

 four-seeded. 



3. Such as have monopetalous Flowers, otherwise circumstanced. 

 SIPHONANTHUS Corolla one-petalled, funnel-form, very 



long, inferior ; berries four, one-seeded. 



CATESB.SA, Lily Thorn Corolla monopetalous, funnel-form, 

 extremely long, superior ; stamens within the mouth ; 

 berry polyspermous. 



IXORA, American Jesmine Corolla one-petalled, funnel- 

 form, long, superior ; stamens above the mouth ; berry 

 four-seeded. 



PAVETTA Corolla one-petalled, funnel-form, superior; 

 stigma curved ; berry two-seeded, one often abortive. 



PETESIA Corolla one-petalled, funnel-form ; stigma bifid ; 

 berry many-seeded. 



MITCHELLA Corolla one-petalled, superior, two on the 

 same germen ; stigmas four ; berry bifid, four-seeded. 



CALLICARPA Calix four-cleft; corolla four-cleft; berry 

 four-seeded. 



JOHNSONIA Perianth, or corolla, in six deep equal seg- 

 ments, withering, deciduous ; filaments dilated and united 

 at their base; style thread-shaped; stigma obtuse; cap- 



sule superior, of three-cells and three valves ; seeds two 

 in each cell. 



AQUARTIA Calix bell-shaped ; corolla wheel-shaped, with 

 linear divisions; berry many-seeded. 



POLYPREMUM, Carolina Flax Calix four-leaved; corolla 

 four-cleft, wheel-shaped, with obcordate lobes ; capsule 

 compressed, emarginate, two-celled. 



PENEA Calix two-leaved; corolla bell-shaped; style quad- 

 rangular ; capsule four-cornered, four-celled, eight-seeded. 



BL^RIA Calix four-parted; corolla four-cleft; stamens 

 inserted into the receptacle; capsule four-celled, many- 

 seeded. 



BUDDLEA Calix four-cleft; corolla four-cleft; stamens 

 from the divisions; capsule two-furrowed, two-celled, 

 many-seeded. 



EXACUM Calix in four segments; corolla salver-shaped, 

 with an inflated tube; capsule superior, with two furrows, 

 two cells, and many seeds, bursting at the top ; stigma 

 capitate. 



PLANTAGO, Plantain Calix four-cleft; corolla four-cleft, 

 with the border reflex; stamens very long; capsule two- 

 celled, cut transversely. 



SCOPARIA Calix four-parted; corolla four-parted, wheel- 

 shaped ; capsule one-celled, two-valved, many-seeded. 



CENTUM cui.ua, Base Pimpernel Calix four-cleft; corolla 

 four-cleft, spreading; stamens short; capsule one-celled, 

 opening horizontally. 



SANGUISORBA, Burnef Calix two-leaved, inferior; corolla 

 superior ; germen between the calix and corolla. 



Cissus Berry one-seeded, surrounded by the calix and 

 four-parted corolla. 



jEoiPHitA Calix four-toothed; corolla quadrificl; style 

 semi-bifid ; berry four-seeded. 



4. Such as are tetrapetalous and complete, not wanting Calix 

 or Corolla. 



EPIMEDIUM, Barrcnworl Petals four; nectaries four; 

 pouches lying on the petals ; calix opposite to the petals, 

 caducous ; pod superior, of one cell, with many seeds. 



CORNUS, Dog Wood or Cornelian Cherry Involucre gene- 

 rally four-leaved; petals four, superior; drupe with a two- 

 celled nut. 



FAGARA Calix four-cleft; petals four; capsule superior, 

 of two valves and one cell; seeds solitary. 



TOMEX, Tallow Tree Involucre four or five leaved ; calix 

 none; corolla five-petalled ; nectary scales five between 

 the lower stamens ; berry one-seeded. 



AMMONIA Corolla four-petalled, inserted into the calix; 

 calix one-leafed, plaited, eight-toothed, inferior; capsule 

 four-celled. 



PTEI.EA, Shrub Trefoil Calix four-parted, inferior ; corolla 

 four-petalled; stigmas two; fruit with a roundish mem- 

 brane, having one seed in the middle. 



LUDWIGIA Calix four-parted, superior; corolla four- 

 petalled ; capsule inferior, four-cornered, four-celled ; 

 receptacle distinct from the axis of the fruit, bearing the 

 seeds on each side. 



OLDENLANDIA, East Indian Madder Calix fastened to the 

 pericarp, with four free awl-shaped teeth at top; corolla 

 one-petalled, four-cleft. ; capsule inferior, two-celled ; re- 

 ceptacles free, fastened to the partition by the base only. 



ISNARDIA Calix four-cleft; corolla none; capsule four- 

 celled, covered by the calix. 



SANTALUM, Sandal Wood Calix four-toothed; corolla four- 

 petalled, with the petals growing on the calix, besides 

 four glands; berry inferior, one-seeded. 



TRAPA, Water Caltrops Calix four-parted; corolla four- 



