GLOSSARY OF TERMS. 



xxvii 



Quadrangular, four angled. 

 Quaternate, four together. 

 Quinate, five together. 



Raceme, 62. 



Racemose, flowering in racemes. 



Rackis, that part of a culm which 

 runs up through the ear of corn, 

 and consequently the part that 

 bears the flowers or fruit in 

 other plants. 



Radiant or radiate, often applied to 

 a cluster or head of flowers when 

 those of the circumference or ray 

 are long and spreading, and un- 

 like those of the disk. 



Radical, growing immediately from 

 the root. 



Radicle, 175. 



Ramose, branching. 



Ray, the diverging florets or petals 

 which form the outside of radiate 

 flowers, cymes, and umbels. 



Receptacle, 3. 



1 Reclined, orreclinate, bending over, 



with the end inclining toward 

 the ground. 



Recurved, curved backwards. 



Rejkxed, bent backward, more than 

 recurved. 



Reniform, kidney shaped, heart 

 shaped without the point. 



Repand, slightly wavy or serpen- 

 tine at the edge. 



Resupinate, turned upside down ; 

 as the corol of Trichostema. 



Reticulate, net like, having veins 

 distributed like net work. 



Retuse, having a slight sinus, or 

 superficial notch in the end, less 

 than emarginate. 



Revolute, rolled barkward or out- 

 ward. 



Rhomboidal, having four sides with 

 unequal angles. 



Ribbed, marked with parallel ridges 

 or veins. 



Ringent, irregular, with an upper 

 and under lip. See Labiate. 



Rooting, sending out lateral roots. 



Rostrate, furnished with a beak. 



Rotate, wheel shaped, applied to a 

 monopetalous corol,. the limb of 

 which is flat and tube very short. 



Rudiment, a term applied to an or- 

 gan that is imperfectly develop- 

 ed. 



Rufescent, becoming reddish- orange 

 or rusty. 



Rugose, wrinkled, leaves of Sage. 



Rugulose, finely wrinkled. 



Runcinatc, having large teeth point- 

 ing backward ; as the leaves of 

 the Dandelion. 



Saccate, bagged, having a bag or 

 pouch ; as in many petals. 



Sagittate, arrow shaped, like the 

 head of an arrow. 



Salver shaped, see Hypocrateriform. 



Samara, a seed vessel not opening 

 by valves, having a winged or 

 membranous appendage. 



Sarmcntose, running on the ground 

 and striking roots from the 

 joints ; as the straicberry. 



Scabrous, rough with little asperi- 

 ties. 



Scale, any small processes resem- 

 bling minute leaves ; also the 

 leaves of the involucre of Com- 

 positee. 



Scape, 58. 



Scarious, having a thin me.mbran- 

 ous margin ; the calyx scales of 

 Liatris scariosa. 



Scions, lateral shoots or offsets 

 from the root. 



Scrobiculate, excavated into little 

 pits or hollows. 



Secund, arranged on one side only, 

 the same as unilateral. 



Segment, a part or principal divi- 

 sion of a leaf, calyx, or corolla. 



Semibivalvular, half divided into 

 two -valves. 



Sepals, 76. 



Septa, the partitions that divide 

 the interior of the fruit. 



Scptiferous, bearing septa. 



Sericeous, silky. 



Serrate, notched like the teeth of a 

 saw, the points tending upward. 



Serrulate, minutely serrate. 



Sessile, placed immediately on the 

 stem without the intervention 

 of a stalk. 



Setaceous, bristle like. 



Seta, bristles. 



Setiform, formed like a bristle. 



Setose, covered with bristles. 



Sheath , a tubular or folded leafy 

 portion inclosing the stem ; see 

 the leaves of Grasses. 



