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GLOSSARY. 



Pedicellate. Having a foot or stein. 



Pericarpium. Covering or tegument of 

 fruit. 



Periderm ; peridermic. The enclosing 

 membrane. 



Peripheral. The outer portion of a circle. 



Piliferous. Bearing hairs, hairy. 



Plicate. Folded or plaited. 



Plumofte. Like the plume of a leather. 



Polymorphism ; polymorphic. Havi ng 

 many forms. 



Primordial. Original, existing from the 

 beginning. 



Prothallus. The false thallus first formed 

 on germination of a spore. 



Pseudo-branches. False branches, or re- 

 sembling branches. 



Pseudo-ramose. Having false branches. 



Pidveretts; pulverulent. Powdered, as if 

 dusted with powdery matter or minute 

 grains. 



Pulvinate. Cushion-shaped. 



Punctate. Dotted, either with depres- 

 sions like punctures, or translucent 

 internal glands. 



Purpurasceus. Purplish . 



Pyriform. Pear-shaped. 



Quadri-radiate. With four radii, or rays. 

 Quaternate. Arranged in fours. 



Radical. Belonging to or proceeding 

 from the root. 



Rad leans. Rooting. 



Radicel. A minute root or a rootlet. 



RamuluH. A small or secondary branch. 



Ramulose. Bearing many brauchlets. 



Recurved. Curved backward or down- 

 ward. 



Reflexed. Abruptly bent or turned 

 downward or backward. 



Remform. Kidney-shaped. 



Replicate. Folded back. 



Resting-spore. A spore which becomes 

 quiescent, or rests for a time, more or 

 less long before germination. 



Rhizoid; rhizome. Resembling, or ana- 

 logous to a root. 



Rostrate. Terminating with a beak. 



Rugose. Covered or thrown into 

 wrinkles. 



Saccate. Sac-shaped; baggy. 



Sraff triform. Barred or crossed like the 



rounds of a ladder. 

 Srrobiculate. Marked "with little pits or 



depressions. 



.Scutate. Buckler-shaped. 

 Sernnd. When parts or .organs are all 



directed to one side. 

 Segment. One of the divisions into 



which a plane frond, such as a desmid, 



may be cleft. 



Segmentation. Dividing into segments. 

 Segregate. To separate from others, or 



set apart. 



Semi. Prefix signifying half. 

 Septum. A partition or division. 

 Septate. Separated by a partition or 



septum. 



Serrate. Beset with antrorse teeth. 

 Sessile. Sitting close, without a stalk. 

 Seta. A bristle or bristle-shaped body. 

 Setiform. In the form of a bristle. 

 Sheath. A tubular or enrolled part of an 



organ, the envelope of filament, etc. 

 Sigmoid. Shaped like the letter S. 

 Sinus (pi. sinuses). A depression or notch. 

 Spermatozoa : sjit-nnatozoids. Thread-like 



bodies possessed of motion, supposed 



to have fecundative power. 

 Stiermogonia. Cells which give rise to 



the spermatozoids. 

 Sjtinose. Furnished with spines, or of a 



spiny character. 

 Sporangium. A spore case, having spores 



produced within it. 



Spore. The analogue of seed in crypto- 

 gams. 



S/inriferoux. Bearing spores within it. 

 Sporoderm. The coating or covering of a 



spore. 

 Stellate. Star-shaped, arranged like the 



rays of a star. 

 Sterile. Barren; destitute of fruit or 



fruit-bearing cells. 

 Stipe. A stalk, the support of a cell or 



organ. 



Stratum. A layer or extended bed. 

 Striae. Fine parallel lines, streaks or 



grooves. 

 Supporting-cell. The cell below an oogo- 



nium as in Oedogonium. 

 Swarming spores. See Zoogonidia. 

 Sub. As a prefix means "almost" or 



" nearly." 



Subulate. Shaped like an awl. 

 Suture. A junction or seam of union. 



Tairtiu. Same as fulvous; dark brownish 



yellow. 



Tegument. A covering or membrane. 

 Terete. Cylindrical, having a circular 



transverse section. 

 Tetrad-pores. Certain spores produced in 



fours. 

 Thallus. A stratum, in place of stem 



and foliage. 

 Tortuous. Bent or twisted in different 



directions. 

 Torulose. Almost synonymous with 



moniliform. 

 Trichogonia. The female reproductive 



organs in Balrachospermum. 

 Trichogyne. A hair-like receptive organ 



of reproduction. 



