B. Organs of Multiplication. 



c. in Flowering. 



1. Cryptandrous, something 

 analogous to sexual di- 

 stinction. 



2. Anandrous (Link), no- 

 thing analogous to sexual 

 difference. 



d. in Fructification. 



1, ? Sporiferous. Agardh*. 



2. ?Sporidiiferous. Agardh. 



Numerical System of Nature ffM. E. Fries. 91 



§ 22. Nemeous Vegetables (Cellular, Cryptogamous, Spo- 

 rideous) are also disposed according to 



A. Organs of Nutrition. 



a. in Germination. 



1. Heteronemeous, threads 

 in germination copulating 

 into a heterogeneous body. 



2. Homonemeous, threads 

 in germination either se- 

 parate or conjluent into a 

 homogeneous body. 



b. in Vegetation. 



1. Diplogeneous, formed of 

 regular connected cellides. 



2. Haplogeneous 5t /or»2£^ of 

 anomalous somewhat fla- 

 mentose cellules. 



§ 23. The Organs of Vegetation, offer modes of subdivision 

 in proportion to the lateness of their evolution. 



Germination offers very few, Vegetation a greater number, 

 Flowers many, Fruit very numerous modes. 



Their dignity is the converse of this ; the most essential modes 

 depending upon germination and vegetation, the less essential 

 upon flowering, and almost accidental modes upon the fruit (at 

 least the pericarpium). 



In this manner the vegetable kingdom, or rather world, is di- 

 vided into two hemispheres by Germination, and into four quar- 

 ters by Vegetation, into Classes by Flowers, and into Orders and 

 Families by Fructification. 



§ 24. Systems truly constructed upon these principles, also 

 comprehend all other essential differences, and at the same 

 time explain them. 



nate to an albumen which performs the functions of cotyledons, perforating 

 the same in germination and included in a double membrane." 



Of these definitions I must remark, with much respect for my very excel- 

 lent friend Professor Agardh, that most of the' differences he indicates be- 

 tween a grain and a seed are rather of words than of reality, and that many 

 are not correct in fact. The embryo of a Monocotyledoneous seed, or as he 

 calls it of a grain, is not adnate to the albumen, neither does it perforate 

 that substance during germination ; the membranes in which the nucleus 

 is enveloped are the same as the membranes of other seeds, and the embryo 

 itself has certainly no proper integuments different from those of a Dicoty- 

 ledoneous embryo. 



* " A Spora is an albuminous embryo included in a simple integument 

 which is destitute of a hilum, and producing in germination a leaf analo- 

 gous to a cotyledon {cotylcdonidiion)." 



" A Sporidium is a naked embryo destitute both of hilum, radicle, and 

 cotyledon." Ag. Apli. 125. 



M 2 XII. On 



