INTRODUCTION TO BOTANY. 4S 
Reot stigmata, Stigmata radicis, Spongiole radicales, 
Ore radicum. . Spongioles at the end of the root; very 
visible in lemna and pandanus. . 
Tuber, Tuberculum. A thick, solid part, usually filled 
with feculze, placed either upon the reot, as in turneps. 
earthnuts, filipendula, or on those lower branches of the 
stem which are subterraneous and rootlike, as in the po- 
tatoe. 
Exostosis. A tuber of a woody consistence, not con- 
taining fecule. Cyperus disticha. 
Ampulle. Hollow globular bodies found on the roots 
of some water plants. Utricularia. 
3. Siluation. 
Subterraneous, Radix subierranea. Most roots. 
Exposed, aeria. Growing upon some part exposed to 
the air. Viscum. 
Aquatic, aquatica. Growing in the water. Lemna, 
Utricularia, Trapa natans. 
A. Substance. 
Woody, Radix lignosa. All trees, shrubs, and under- 
shrubs. 
Fleshy, carnosa. Thick, juicy, mostly formed of cellular 
texture. Iris palustris, Beta vulgaris, Solanum tuberosum. 
5. Form. 
Threadshape, Radix filiformis. Lemna. 
Fibrous, jibrosa. ‘The threads being of some thickness. 
Cepa esculenta, Ranunculus flammeus. 
.Thongshape, flagelliformis. . Long, supple, slende;v. 
Arenaria maritima, Carduus arvensis. 
-Cordshape, funiliformis. Of thick fibres like ropes. 
Palms, Pandanus, Dracena. 
Spindleshape, fusiformis. Simple, long, swelled out in 
the middle, and small at each end. Raphanus sativus. 
Turnep shape, napiformis. Simple, globular. Brassica 
macrorhiza, 
Conical, conica. Gradually decreasing from top to bot- 
tom, Daucus vulgaris. 
_ Cylindrical, teres. Dictamnus albus. 
Roundish, subrotunda, Bunium majus, B. minus. 
Tuberous, tuberosa. In thick fleshy masses. Cyclamen, 
Solanum tuberosum, Bryonia dioica. 
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