EXOGEN.E CALYCIFLORJE. 



135 



1. Is an ideal plan of a fruit divided transversely ; a a is the commissure, or 

 plane of contact of the mericarps ; b b primary ridges ; c c secondary ridges. 2. Is a 

 view of the back and section of the fruit of Laserpitium Siler ; each mericarp has the 

 secondary ridges winged, the primary obsolete ; there are two vittae on the commis- 

 sure, and one under each secondary ridge ; these vittae, which are cavities containing 

 oil, are represented by dots ; the albumen is solid. 3. Sclerosciadium humile ; the 

 primary ridges are corky ; there are no secondary ridges ; the vittae alternate with 

 the primary ridges, and there is one at each edge of the commissure ; the albumen is 

 solid. 4. Discopleura capillacea ; there are 5 very small primary juga, the two 

 lateral of which are in contact with a thickened accessory margin ; there are 2 vittae 

 on each face of the commissure, and one between each primary ridge ; the albumen is 

 solid. 5. Echinophora spinosa ; albumen involute ; vittae alternate with the primary 

 ridges. 6. Compressed fruit of Diposis saniculaefolia ; the commissure is very nar- 

 row ; there are 5 minute primary ridges ; one along the back, one along each edge, 

 and two on the indexed side ; the albumen is solid. 



SUBCLASS III. COROLLIFLOR^E. 



84>. LorantJiacea. Parasitical half-shrubby plants. 

 Leaves opposite, without stipules. Flowers either very long 

 and tubular, or small and green. Calyx with 2 bracts at 

 the base. Corolla with 3, 4 or 8 petals, more or less united 

 at the base, valvate ; stamens opposite to them. Ovary 

 1-celled ; ovule erect. Fruit succulent. Seed solitary ; em- 

 bryo cylindrical, longer than the fleshy albumen. 



USES. Bark astringent ; that of Loranthus tetrandrus is em- 

 ployed in Chili for a black dye. Miseltoe is Viscum album. 



TYPICAL GENERA. Viscum, Loranthus. 



