GLOSSARY. 325 



SCANDENT. Climbing. 



SEGMENT. One of the smaller divisions of a pinnatifid frond. 



SERRATE. With sawlike teeth ; said of margins. 



SESSILE. Without a stalk. 



SINUATE. Wavy ; said of margins. 



SINUS. The re-entering space between two lobes. 



SORUS (PL. SORI). An assemblage of sporangia ; a fruit dot 



SPATU LATE. Spoon-shaped. 



SPINE. A sharp point ; a thorn. 



SPINULOSE. Thorny ; set with small spines. 



SPORANGE (PL. SPORANGIA.) A tiny globe in which the spores are 



produced. 

 SPORE. A one-celled body, the fruit of the higher cryptogams ; it is 



produced asexually and is the analogue of a seed. 

 SPORECASE. Same as sporange; the case in which the spores are 



borne. 



STALK. Same as stipe. 



STERILE. Barren. Said of fern leaves that do not produce spores. 

 STIPE. The petiole or stalk of the fern leaf which bears the leafy 



portion aloft. 



STOLON. A trailing, or often underground, branch. 

 SUBULATE. Awl-shaped. 

 TERNATE. With three nearly equal divisions. 

 TOMENTOSE. Covered with matted wood. 

 TOMENTUM. Close matted woolly hairs. 

 TOOTH. The smallest divisions of the fronds. 

 TORTUOUS. Bent or twisted in different directions. 

 TRI FINN ATE. Three times pinnate. 

 TRUNCATE. Appearing as if out off abruptly. 

 UNDULATE. Wavy-margined. 



VASCULAR. Containing vessels, ducts, etc. as the stems of ferns. 

 VEIN. One of the small branches in the framework of a leaf. 

 VENATION. The manner in which the veins are arranged in the 



leaf. 



VERNATION. The arrangement of leaves in the bud. 

 VIVIPAROUS. Producing young upon various parts of the plant. 

 WINGED. Bordered with tissuf as the/achis of some ferns. 



