GLOSSAJtY AND INDEX. 



157 



Sessile (Lat. sedere^ to sit), without 



a stalk or petiole. 

 Setiform (Lat. seta, a bristle, and 



forma^ form), bristle-like. 

 Shield-fern, V. Dryopteris, 

 SigillariaceEB, 63. 

 Sinuate (Lat. sinus, a bending), 



having the margin alternately bend- 

 ing inward and outward. 

 Sinus (Lat. a bending), a recess or 



bay; the re-entering space between 



two lobes. 

 SorUS (plu. sori) (Gr. (rmpo^, a heap 



or cluster), the clusters of fruit in the 



POLYPODIACE^. 



Spatulate (Lat, spatula^ * little 

 spoon), shaped like a spatula. 



Species, 44- 



Specific Names, 41- 



Spermaphytes (Gr. (riT€pfj.a, a 

 seed, and ^urdf, a plant), 10, 20, 50. — 

 Literature of, sg. 



Spinulose (Lat. s^zna, a thorn), 

 thorny. 



Spleenwort. Vide Aspleni- 

 um. 



Sporangium (plu. sporangia) (Gr. 

 (TTTopos, a seed, and ayyo?, a vessel), 

 the case or capsule enclosing the 

 spores, 10. 



Spore (Gr. o-7rop6s, seed), the fruit 

 of the higher cryptogams, produced 

 asexually, 10, 18. 



Sporocarp (Gr. o-iropd?, seed, and 

 KapTTos, fruit), the fruit-bearing re- 

 ceptacle in Marsili'a^ etc. 



Squamous (Lat. squama, a scale), 

 with appressed scales. 



Stellate (Lat. stella, a star), star- 

 shaped. 



Stipe (Lat. stipes, a stock), the stem 

 of a frond, 8, 25. 



Stoma (plu. stomata) (Gr. a mouth), 

 the breathing pores of plants, 26, 33. 



Stramineous (Lat. stramen, 

 straw), straw-colored. 



Strutliiopteris, 101 ; also 2, 14, 8r. 



Sub- (as a . prefix), about, nearly, 

 somewhat. 



S u b U 1 ate (Lat. suhula, a shoe 



maker's awl), awl-shaped. 

 Superior, higher, applied toindusia 



that are attached above the sorus as 



in Dryopteris. 

 Synonymy, 44- 



Tsenitis. Vide Clneilogram- 

 ma. 



Tectaria, 118; also 16, 80. 



Ternale (Lat. temi, three each), 

 branching into three nearly equal di- 

 visions. 



Tertiary Agfe, Pteridophytes of, 

 63- 



Tliallopliytes (Gr. 0aXX6s, a young 

 shoot, and ^mtqv^ a plant), a group of 

 plants including the lichens, fungi, 

 and algse, 50. 



TFialloid (Gr. QaXKdq, a young shoot, 

 and eiSo9, form), having the form of a 

 thallus, i. ?., no leafy axis. 



Thalloid Phase, 19- 



Tissues, 24. 



Tissue Systems, 25. 



Tomentose (Lat. tomentum, a 

 stuffing of wool), covered with mat- 

 ted woolly hairs. 



Tomentum (Lat. a stuffing of 

 wool), the dense matted woolly hair 

 found on some ferns as many species 

 of Cheilanthes. 



Tri- (Lat. iris, three), (as a prefix) 

 three, thrice. 



Trichomanes, 74; also 6, n, 17, 



Trichomes (Gr. ffpi'^, hair), hairs, 

 variously modified as scales, indusia, 

 sporangia, etc., produced from the 

 epidermal cells, 26. 



Triquetrous (Lat. triquetrus\ 

 three-angled. 



Truncate (Lat. truncare, to cut 

 short), cut off abruptly. 



Tufted, growing in clusters. 



U 



Undulate (Lat. undula, a little 

 wave), wavy-margined. 



