94 



MIRBEL'S CLASSIFICATION OF FRUITS. 



Bacca, contains all the fruits of this order not found in the other 

 genera. The pericarp of the currant, whortleberry, orange, bar- 

 bel 13^, potato, grape, &c., are 

 found heie. Fig. 104, repre- 

 •-ents a spherical berry, a, of 

 ) the genus Ribes ; it is known 

 ^ by the name of wild goose- 

 ' beiiy ; the fruit is many- 

 seeded, as may be seen at 

 Z>, ^^hlch represents it as cut 

 veitically ; c, is the same cut 

 tians\eisely. 



w 



CLASS II. ANGIOCARPES. 

 I^i-uiis lokich are covered by a bract or foUaceoiis envelope. 



This class is divided into five genera, as follows : 

 1st. Strohilum or cone., a collection of carcerular fruits concealed 

 by scales, formed of bracts or peduncles, v/hose union produces a 

 globular or conical body, as the juniper, pine, &c. Fig. 105, repre- 

 sents the fruit of the pine, which is composed of woody, close, and 

 indehiscent cupules. The glands are membranous, one-celled, and 

 one-seeded ; a, is an entire sirohilum ; b, is the same, cut vertically ; 

 the placenta, extending lengthwise through the fruit, is large. The 

 pine-apple, Bromelia, is of this genus of fruits. 



a 



Pig. 105. 



2d. Calybion* (from kalubion, a little cabin ;) fruits of this genus 

 are composed of a cupule or cup of variable forms, and of carcercu- 

 lars enveloped entirely, or in part, by the cupule. The carcerculars 

 of calybions are called glands. The gland of the oak is partly con- 

 cealed in its cupule, that of the beech entirely concealed, and also 

 of the yew, {Taams ;) in the latter are two cupules, one enclosing 

 the other ; the exterior one is succulent, and of an orange red ; the 

 interior, which is hard and woody encloses the fruit. 



* This includes what some writers call the gland and the nut. 



Bacca— Enumerate the orders in the class Gymnocarpes, with ihegei 

 Describe the class Angiocarpes — Strobilum — Calybion. 



ra of each— 



