MORPHOLOGY OF THE PLANT AS A WHOLE. IQ 



belong to the Series Phanerogamia. Species, then, make a Genus; 

 Genera make an Order ; Orders make a Class ; Classes make a Series ; 

 and Two Series — Cryptogamia and Phanerogamia — make the Vege- 

 tal Kingdom. 



34. The Botanical Name of a Plant is always double, 

 and written after the rule of the Latin Grammar, though 

 the etymon, or root, may come from any other language. 

 The first name belongs to the Genus, and is called Generic. 

 The second name belongs to the Species, and is called 

 Spedjio. Rosa is the generic name of any rose; Rosa 

 canina specifies (gives the species of) the rose we call in 

 English Dog-Rose (eanina, from L. canis, dog). Mosa 

 rubiginosa (L. ruhiginosa, rusty) specifies the rusty-leaved 

 rose we call Sweet-Brier. (See Rules of Pronunciation, 

 Lesson XXXV.) 



LESSON V. 



MORPHOLOGY OF THE PLANT AS A WHOLE— PLANT 

 DEVELOPMENT. 



SarieB I — CrvntOffamia 2 Classes I '■ Thallogens, Naked Spores. 

 series i. orypiogamia. a Liasses | j. Acrogens, Covered Spores. 



Class I. — Thalloqens. Naked Spores. 



35, 36. Protophytes. 37. One-celled Plants ; the Cell defined. 

 38. Digestion and Growth. 39. Single Reproduction. 40. Partheno- 

 genesis. 41. Reproduction and Multiplication. 42. Volvox. 43. 

 Diatoms. 44. Dual Reproduction; Conjugation. 45. Green Sea- 

 weeds. 46. Parentage ; Summary. 



35. Protophytes (Gr. protos, first, phyton, plant) are 

 called First Plants because they were the first plants cre- 

 ated. They are considered the first formed of living crea- 

 tures, and therefore the foundations upon which all organic 

 life is based, for the plant must have preceded the animal 

 (5). They teemed in the seas ages before land appeared, 

 and perhaps long before any animal was created; living 

 their brief day, and then, in their fossil remains, laying up 

 food for the coming generations of higher plants. 



