CLASSES, ORDERS, AND GENERA. 



xxxvii 



IS 



13. 



long. 



Stam, much longer than the corolla. — Fertile fl. : Cal. 

 (unless 3 bracteas be so called). Cor. urceolate. Style very 



Fruit 1-seeded. — Leaves radical, p. 349. '' 

 Alntts. Flower all in cylindrical catkins. — Barren fl.; Scale 

 of the catkin 3-lobed, with 3 flowers. Perianth single, 4- 



Fertile fl. : Scale of the catkin subtrifid, with 2 

 Perianth 0. Styles 2. Fruit compressed, 2-celled, 



14 



15 



16 



17 



18 



partite. - 



flowers. 



— Trees, p. 390 

 Myrica. Flowers all in cylindrical catkins ; scales entire, each 



with a single flower. Perianth none. Germen 1 -celled, 



1-seeded. Styles 2. Fruit globose. — Shrubs, p, 389. 

 Buxus. Flowers clustered, axillary. Perianth single, of 4 



leaves, 2 opposite ones smaller, with 1 — 3 bracteas at the 



base. Styles 3. Caps, with 3 beaks, 3-celled, 6-seeded. — 



Trees or shrubs, p. 380, 



Pakietaria. Flowers clustered, axillary. Perianth single, cam- 

 panulate or tubular, 4-cleft. Style simple. Stigma penicillate. 

 Achene 1-seeded. — Herbaceous plants with leafy stems. 



p. 384. 

 Uetica. Flowers in spikes or clustered. Perianth single, of 

 the barren flowers 4-leaved, of the fertile 2-leaved. Stigma 

 sessile. Achene 1-seeded. — Herbaceous plants with leafy 



stems, p. 383. 



Eriocaulon.' Flowers collected into a compact, scaly, stalked 

 head. Perianth single, diaphanous. — Barren flowers in the 

 centre. Perianth 4 -cleft, the inner segments united nearly 

 to their summit. — Fertile flowers in the circumference. 

 Perianth deeply 4-partite. Style 1. Stigmas 2. Caps, 2.celled; 

 cells 1-seeded,— Leaves all radical. 



19. Xajjth 



p. 458. 



Ord. V. Pentandria. 5 stamens. 

 » Barren fl. 



: Involucre .of few scales, with many 

 small capitate flowers seated upon a common receptacle. 

 Perianth single, obovate, 5 -toothed. Anthers terminating a 

 tube, which is inserted into the base of the perianth,— Fertile 

 fl. : Involucre of 1 piece, prickly, 2-beaked, entirely inclosing 

 two 1-seeded pistils, without a perianth, p. 256. 



20. Atriplex. 



Perianth single, herbaceous, of the barren flowers 

 5-partite, of some or all the fertile 2-leaved. Style 2. 

 Utricle superior, indehiscent, l-seeded. p. 357. 



Ord. VI. PoLYANDRiA. 6 stamens or more. 



* Flowers not in catkins. 



f Flowers 



% 



21. Ceuatophtllum. Flowers axillary. Perianth (an involucre ?) 



KtamYn='*l\{^'!l*''^'^.u" ■'^'"»'»"« Hexandria; but the only British species has 4 

 proponion *'*"' °^ '^^ ^'"^^'" ^'^ '° ^ ^^"^''^ (V). not ternary (^). 



