BOTANICAL NAMES 41 



feather ; having pinnate (which see) leaves on both 



sides of leaf-stalk. 



Bipinnatified (bi-pin-nat-i-fid). L. " Bi " (two) ; " pin- 

 na ' ' (feather) ; ' ' fidi * ' (cleft) ; when the pinnate 



leaflets are again each pinnated. 

 Biramus (bi-ra-mus). L. " Bi " (two); " ramus " (a 



branch) ; a limb divided into two branches. 

 Birch. Eng. name for Betula group; Birch, from A.S. 



" beorc," the bark-tree. 

 Birdcherry. Eng. name for one of the three wild 



Cherries, and gets the name " bird " because the 



fruit is only fit for birds. 

 Bird's Foot. Eng. translation of the bot. name 



Ornithopus, a group of the Pea family. The seed 



vessels of the plant are like the claw of a bird. 

 Bird's Nest. Eng. name for Neottia group, and is a 



translation of the L. second name of the only plant 



in that group. It is said to have got this name 



because the roots of the plant are entangled like 



the sticks in a crow's nest. 

 Birostrate (bi-ros-trat). L. " Bi " (two); " rotrum " 



(a beak) ; double beaked. 

 Bishop's- Weed. A name used in the i6th century for 



what is now known as Gout-weed. 

 Biserrate (bi-ser-rat). L. " Bi " (twice); " serra " 



(a saw) ; some leaves are notched round their 



margin with saw-like teeth, and these in turn are 



notched in the same way. 

 Bistorta (bis-tort-a). L. "Bis" (twice); " totus " 



(twisted) ; refers to the twisted appearance of the 



root. 

 Biternate (bi-ter-nat). L. " Bi " (twice); " terni " 



