THE MAN'S HOUSE. 



117 



165.— Baniriu lit 



stamen), we have the terras Monandria, monandrous, Diandria, di- 

 androus, etc., up to Decandria, decandrous, to represent the number 

 of stamens in the androecium. When there are 

 more than ten, the androecium is Polyandrous 

 (6r. polus, many), and the stamens are Indefi- 

 nite (111). When their number is equal to that 

 of the corolla-lobes, as in the Primrose (Pig. 5), 

 or to the petals in a polypetalous flower, as in the 

 Sedum, the flower is Isostemonous (Gr. equal- 

 stamened). When their number is less or greater 

 than the number of the corolla-parts, the flower 

 is A nisosiemonous, — unequal-stamened . 



253. Position in regard to Calyx and Corolla. — 

 When adherent to the sepals, as in the Banksia 

 (Fig. 165), the stamens are Episepalous ; when 

 adherent to the corolla, as in the Primrose (Pig. 

 6), they are Epipetalous. They are usually Al- 

 ternate with the lobes or petals, as in the Sedum ; but sometimes Op- 

 posite or against them, as in the Primrose. They are Exserted when 



they project beyond the corolla, as in 

 the Columbine (Pig. 154) ; Included, 

 when quite within it ; Primrose. 



254. Position in regard to one an- 

 other. — The stamens are Ascending 

 when they rise obliquely (Penny- 

 royal) ; Connivent when they lean 

 towards each other around the pistil, 

 with their anthers touching, but not 

 cohering (Irish Potato, Egg-plant, 

 Fig. 158) ; Declinate when all turned 

 in one direction (Azalea) ; Erect 

 when rising vertically (Herb-Eob- 

 ert) ; Inflexed, curving in towards the 

 pistil (Almond, Peach) ; Pendulozis, 

 reverse of erect (Columbine). 



855. When coherent, the stamens 

 are Monadelphous, or in one brother- 

 hood (Gr. adelpkos, brother), with 

 their filaments united into one set, as 

 in the Broom (Pig. 166), the Mallow, 

 and Cotton. They are Diadelphous 

 when their filaments are in two sets, 

 as in the Pea (Fig. 167, A) ; Tri- 

 adelphous when in three sets, as in 

 St. John's - wort ; Polyadelphous, in 

 many sets, as in the Castor Oil and 

 Cream-nut. They are called Syn- 

 genesious (Gr. syn, together, genesis, 

 „ ,„,. birth), or born-together, when they 



166. — a, Broom (CytisuB Bcopor ^„i,„/.„ i .-, • ^t_ . ,,'' 



. ,! „„H . w \.„/i,™„i.,„, cohere by their anthers, as in the 



Sunflower Order (Pig. 167, B), in 



which this is a permanent character; here the fllaments are distinct. 



In the Lobelia both filaments and anthers cohere into a tube, making 



Fig. 

 riuB) ; 6, Ive. 



