£00 MANUAL OF BOTANY 



Division of the Order and Illustrative Genera. — The order has 

 been divided into two tribes, as follows : — 



Tribe 1. Tiliece. — Corolla with entire petals, or wanting ; anthers 



dehiscing longitudinally. Illustrative Genera : — Corohorus, 



Linn.; Tilia, Ziiji?!. 

 Tribe 2. Elceocarpeee. — Petals divided, anthers opening by pores 



at the apex. Illustrative Genera : — Elseocarpus, Linn. ; 



YaUea, Muf. 



Distribution and Numbers. — A few are found in the northern 

 parts of the world, where they form large trees ; but the plants 

 of this order are chieily tropical, and are there found as herbs, 

 shrubs, or trees. There are about 350 species. 



Properties and Uses. — In their properties the Tiliacese re- 

 semble the Malvaceae. They are altogether innocuous, and are 

 generally mucilaginous, emollient, and demulcent. Many of 

 them also yield fibres, which are much used for manufacturing 

 purposes. Some are valuable timber-trees, and some have 

 edible fruits. 



Artificial Analysis of the Orders in the Sub-class FolypeialcB. 



Series 1. Thalamo'LOE.i:. 



1. FJjOavers with more than 20 stamens. 



A. Leaves without stij)ules. 



a. Carpels more or less distinct (at least as to 

 the styles), or solitary. 



1. Stamens distinct. 



Carpels immersed in a fleshy tabular tha- ( Nymphceacece 



lamus 1 (Nelmnbonea). 



Carpels not immersed in a thalamus. 



Embryo "with endosperm and perisperm | trt r. 



Embryo naked, very minute. 



Seeds arillate . . DilleniacecB. 



Seeds exarillate. Albumen fleshy and 

 homogeneous. 

 Flowers hermaphrodite HanunciilacecE. 



Flowers unisexual . Schizandracece . 



Seeds usually exarillate. Albumen ru- 

 minated . . Arwnacece. 



2. Stamens united in one or more parcels. 

 Calyx imbricate. 



Seeds smooth . Hypericacece. 



Seeds shaggy . . . Beaumuriacete. 



