340 



HENDEKSON'S HANDBOOK OF PLANTS. 



DIP 



with resinous juice, and alternate invo- 

 lute leaves with convolute stipules. The 

 fruit is leathery, one-celled; seeds single, 

 without albumen. They are tropical In- 

 dian trees, found especially in the islands 

 of the Indian Archipelago. They yield a 

 resinous, balsamic juice. Dryabalanops 

 Camphora or aromatica, a tree from a 

 hundred to a hundred and thirty feet 

 high, supplies the hard Camphor of Su- 

 matra, which exists in a solid state in the 

 interior of the stem, sometimes in pieces 

 weighing from ten to twelve pounds. It 

 also yields by incision a resinous, oily 

 fluid called the Liquid Camphor or Cam- 

 phor Oil of Borneo. Sometimes five gal- 

 lons of the fluid are found in a cavity in 

 the trunk. Several others yield valuable 

 resins. There are seven known genera 

 and forty-seven species. Dipterocarpus, 

 Valeria, Dryobalanops, and Shorea are ex- 

 amples of the order. 

 Dipterous. Having two wing-like processes, 



as the seeds of Halesia diptera. 

 Dipyrenous. Containing two stones or py- 



rense, which see. 



Disciform. Flat and circular; the same as 

 orbicular, which see. Also a name 

 given to the chambered nuts of such 

 plants as the Walnut. 



Discocarpium. A collection of fruits placed 

 within a hollowed receptacle, as in many 

 Roseworts. 



Discoidal. Orbicular, with perceptible 

 thickness, slightly convex, and a rounded 

 border. 



Discolor. Parts having one surface of one 

 color, and the other surface of another 

 color. Also, any green color altered by a 

 mixture of purple, as in Oissus discolor. 

 Discopodium.The foot or stalk on which 

 some' kinds of disks are elevated, 

 ooth, without thorns. 



DIV 



Disk. An organ intervening between the 

 stamens and ovary. It assumes many 

 forms, the most common of which is a 

 ring or scales, and it is apparently com- 

 posed of metamorphosed stamens. Also, 

 the receptacle of certain Fungi, or the 

 hymenium (which see) of others. 



Disomorphous. Two-shaped. 



Dispermus. Two-seeded. 



Dissected. Cut into many deep lobes. 



Dissectus. Where the segments, as in some 

 leaves, are very numerous and deeply cut. 



Dissemination. The manner in which ripe 

 seeds of plants are naturally dispersed. 



Dissepiments. The partitions in a fruit 

 caused by the adhesion of the sides of 

 carpellary leaves. Spurious dissepiments 

 are any partitions in fruit which have not 

 the origin just explained. 



Dissimilar. When similar organs assume 

 different forms in the same individual; 

 as some of the anthers in the genus 



Distachyon. Two-spiked. 



Distichous. When pai-ts are arranged in 

 two rows, the one opposite the other, as 

 the florets of many grasses. 



Distinct. When any part or organ is 

 wholly unconnected with those near it. 



Distractile. Divided into two parts as if 

 torn asunder, like the connective of some 

 anthers. 



Diurnal, Diurnus. Enduring only a day, 

 as the flowers of Tigridia and Hemero- 

 callis, (Day Lily.) 



Divaricate,Divaricating. -Straggling ; spread- 

 ing abruptly; branching off at an acute 

 angle, and spreading irregularly in various 

 directions, as in Veronica pinnata. 



Divergent. Growing far asunder; applied 

 to branches and leaves. 



Diversiflorus. When a plant or inflores- 

 cence bears flowers of two or more sorts. 



