Iviii LINN^AN ARRANGEMENT 



ovate, bifid. Capsule elongated, cylindric, 3-toothed, 1-celled, many-seeded. 

 HydrocJiariaacece, p. 342. 



Fra^iNus. Polygamous. Calyx small, 4-clcft or none. Corolla none 

 or 4-petalled ; the petals cohering at the base in pairs, oblong or linear. 

 Stamens 2. Capsule 2-celled, compressed, winged at the apex, by abortion 

 1-seeded. Oieacecc, p. 230. 



Order IL— TRif NDRIA.— 3 Stamens. 



Empetrum. Perianth consisting of two rows of scales. Sterile Fl, 

 Stamens 3, upon long filaments. Fertile Fl. Style none, or very short. 

 Stigma with G — 9 rays. Fruit globose, with 6 — 9 nucules. Empetracece, 

 p. 310. 



Oakesia. Staminate Fl. Perianth of 5 — G leafets ; the innermost 

 ones somewhat petaloid and often united on one side. Stamens mostly 3, 

 (sometimes 4 or 5,) exserted. Ovary wanting or mostly abortive. Fertile 

 Fl. Perianth nearly as in the sterile. Disk none. Ovary 3 — 4-celled. 

 Style filiform, 3 — 4-cleft. Fruit dry and drupaceous, globose, minute. 

 Empetracecs, p. 310. 



Order III.— TETRANDRIA.— 4 Stamens. 



Myrica. Sterile Fl. Ament cylindric ; scales concave. Stamens 

 4 — 6. Fertile Fl. Ament closely imbricate, small, ovoid. Styles 2. 

 Drupe 1-celled, 1-seeded. Mijncacea^ p. 324. 



ViscuM. Sterile Fl. Sepals 4, (rarely 3 — 5,) fleshy, the segments 

 triangular. Fertile Fl. Calyx with the margin obsolete ; inner sepals 

 (petals) 4, distinct. Stigma obtuse, sessile. Berry pulpy. Loranthacecc, 

 p. 143. 



{Rhamnus in CLASS PENTANDRIA, Order MONOGYNIA.) 



Order IV.— PENTANDRIA.— 5 Stamens. 



Nyssa. Sterile Fl. Perianth 5-parted. Stamens 5 — 10. Fertile 

 Fl. Perianth 5-parted. Stamens 5. Style 1. Drupe inferior, 1-seeded. 

 Santalacecc, p. 30?. 



Zanthoxylum. DicBciously polygamous. Sepals 3 — 5, small. Petals 

 longer than the sepals, or none. Stamens and carpels as many as the 

 lobes of the calyx, 1 — 2-seeded. Zanthoxylacea, p. 67. 



Acnida. Sterile Fl. Perianth 5-parted. Stamens 5, very short. 

 Fertile Fl, Perianth 3-parted. Styles none. Stigmas 3 — 5, spreading. 

 Capsule 1-seeded. ChenopodlacecB, p. 298. 



HuMULUs. Sterile Fl. Perianth 5-parted. Stamens 5. Fertile Fl. 

 in aments; the scales large, membranous, imbricate in several rows, 2- 

 flowered. Stigmas 2, long, spreading. Achenia invested with the enlarged 

 perianth, and forming a membranaceous strobile. Cannabinacea: , p. 3 1 7. 



Cannabis. Sterile Fl. Perianth 5-parted. Stamens 5. Fertile 

 Fl. Perianth oblong, acuminate, convolute, the base ventricose, and in- 

 cluding the ovary. Stigmas 2, long, subulate. Nut 2-valved. Cannobi- 

 iincecc. p. 31G. 



Negundo. Calyx minute, unequally 4 — 5-toothed. Petals none. An- 

 thers 4 — 5, linear, sessilet Aceracea^ p. 61. 



{Salix, Order I. Ribcs, CLASS PENTANDRIA.) 



