378 



DIRECTION. 



[BOOK in. 



a. To the right hand, or dextrorsum, ; when the twisting is from left to right, 

 or in the direction of the sun's course ; as the Hop. 



b. To the left hand (sinistrorsum) ; when the twisting is from right to left, 

 or opposite to the sun's course ; as Convolvulus sepium. 



33. Turned backwards (retrorsus) ; turned in a direction opposite to that of the 

 apex of the body to which the part turned appertains. 



34. Turned inwards (introrsus, anticus) ; turned towards the axis to which it 



appertains. 



35. Turned outwards (extrorsus, posticus) ; turned away from the axis to which 

 it appertains. 



36. Procumbent (procumlens, hwiifusus) ; spread over the surface of the 

 ground. 



37. Prostrate (prostratus, pronus) ; lying flat upon the earth, or any other 

 thing. 



38. Decumbent (decumbens) ; reclining upon the earth, and rising again from it 

 at the apex. 



39. Diffuse (diffusus) ; spreading widely. 



40. Straggling (divaricatus) ; turning off from anything irregularly, but at almost 



a right angle ; as the branches of many things. 



41. Brachiate (brachiatus) ; when ramifications proceed from a common axis 

 nearly at regular right angles, alternately in opposite directions. 



42. Spreading (patens) ; having a gradually 



outward direction ; as petals from the 

 ovarium. 



43. Converging (connivens) ; having a 

 gradually inward direction ; as many 

 petals. 



44. Opposite (adversus, ^ oppositus) ; point- 



ing directly to a particular place ; as 

 the radicle to the hilum. 



45. Uncertain (vagus) ; having no particular 



direction. 



46. Peritropal (peritropus) ; directed from 

 the axis to the horizon. This and the 

 four following are only applied to the 

 embryo of the seed. 



47. Orthotropal (orthotropus) ; straight, and 



having the same direction as the body to which it belongs. 



48. Antitropal (antitropus) ; straight, and having a direction contrary to that of 

 the body to which it belongs. 



49. Amphitropal (amphitropus) ; curved round the body to which it belongs. 



50. Homotropal Qiomotropus) ; having the same direction as the body to which 



it belongs, but not being straight. 



42 



49 



3. Of Insertion. 

 A. With respect to the Mode of Attachment or of Adhesion. 



1. Peltate (peltatus, umbilicatus) ; fixed to the stalk by the centre, or by some 

 point distinctly within the margin ; as the leaf of Tropseolum. 



