650 THYMUS 



(thyme) in Brit. Fls. gynodioec. with marked protandry. T. vul- 

 garis L. (garden thyme) used in flavouring. 



Thyrocarpus Hance. Boraginaceae (iv. i). 3 China. 



Thyroid, shield-like. 



Thyroma Miers (Aspidosperma Mart, et Zucc. p.p.). Apocynaceae (i. 3). 

 9 Brazil, W.I. 



Thyrsacanthus Nees (Odontonema EP.}. Acanth (iv. B). 25 trop. 

 Am. 



Thyrsanthus Benth. =Forsteronia G. F. W. Mey. (Apocyn.). 



Thyrsodium Salzm. ex Benth. Anacard. (3). 4 trop. S. Am., W. Afr. 



Thyrsopteris Kunze. Polypodiaceae. i Juan Fernandez. 



Thyrsostachys Gamble (Rottboellia p.p. ). Gram. (2). 2 Khasias. 



Thyrsus, an ovate panicle. 



Thysanocarex Borner = Carex Dill. p.p. (Cyper.). 



Thysanocarpus Hook. Cruciferae (4). 6 Calif. 



Thysanolaena Nees. Gramineae (4). i trop. As. (tiger grass). 



Thysanospermum Champ, ex Benth. Ruhiaceae (i. 5). i Hongkong. 



Thysanotus R. Br. Liliaceae (in). 22 Austr., S. E. As. 



Thysanurus O. Hoffm. Compositae (i). i Angola. 



Thysa.nus Lour. Inc. sed. i China. 



Thysselinum Adans. = Peucedanum Tourn. (BH.) Selinum L. 



Tiarella L. Saxifraeaceae (i). 4 China, N. Am. 



Tibouchina Auhl. Melastomaceae (i). 200 trop. Am. 



Tickseed (Am.), Coreopsis; -trefoil (Am.), Desmodinm. 



Ticorea Aubl. Rutaceae (i). 3 Guiana. 



Tiedemannia DC. (Pencedannm p.p. BH.). Umbell. (ill. 6). 4 N. Am. 



Tieghemella Pierre. Sapotaceae (inc. sed.). 2 W. trop. Afr. 



Tieghemopanax Viguier (Polyscias EP.). Aral. (i). 26 Austr., N. 

 Cal. 



Tigellum, plumule. 



Tiger flower, Tigridia pavonia Ker-Gawl. 



Tigridia ]uss. Iridaceae (n). 7 Mexico, C. Am. T. Pavonia Ker- 

 Gawl. (tiger flower), cult. orn. fl. The fls. only last 8 12 hours. 



Tiles, cf. Bamboos. 



Tilia (Tourn.) L. Tiliaceae. 12 N. temp. 7\ platyphyllos Scop, and 

 other limes in Brit. Note leaf-mosaic (see fam.). The 1. are usu. 

 covered with honey-dew (see Acer). Fls. in liUle cymes, arising from 

 axils of 1. of current year; the axillary growing point elongates trans- 

 versely, giving rise to two buds, one of which forms the infl., the 

 other the bud for the next year's growth. The further development 

 of the infl. is complex, but throughout there occurs 'adnation' of 

 bracts to the axes arising in their axils, particularly noticeable in the 

 first 1. of the infl. -axis, which forms a wing, covering the fls. Honey 

 is secreted at the base of the sepals. Fls. protandrous, dependent 

 upon insects for fert. ; largely visited by bees &c., and a valuable 

 source of honey Fr. a nut. Endosp. very oily. The wood of 

 lime and of T. anii'ricana L. (bass-wood) is useful. The inner fibre 

 of the bark (bass) is very useful for tying. 



Tiliaceae (EP.; BH. incl. Elaeocarpaccae}. Dicots. (Archichl. Malvales). 

 35 gen., 380 sp., trop. and temp., chiefly S-E. As. and Brazil. Trees 

 or shrubs, rarely herbs, with alt. stip. 1., often showing well-marked 



