646 THEACEAE 



6 or 7, imbr., persistent ; C 5, rarely 4, 9 or oo , imbr. ; A QO , rarely 

 5, 10 or 15, free or in bundles or united into a tube; G i- 3- 5- 

 (o-loc , with 2, 4 or co anatr. ov. in each. Caps, or drupe. Embryo 

 usu. curved ; endosp. little or none. The only important economic 

 plant is Thea; Camellia is a favourite in cult. Chief genera: Thea, 

 Camellia, Gordonia, Ternstroemia, Eurya. 



Theca, a sporangium, an anther loculus. 



Thecacoris A. Juss. Euphorbiaceae (A. i. i). 6 trop. Afr., Madag. 



Thecocarpus Boiss. Umbelliferae (in. i). i Persia. 



Thecophyllum E. Andre (Guzmania p.p.). Bromel. (i). 3 C. and S. 

 Am. 



Thecostele Reichb. f. Orchidaceae (n. /3. 11). 3 Burma, Malaya. 



Theetsee, Melanorrhoea ttsilata Wall. 



Theileamia (Pliaulopsis p.p. EP.). Acanthaceae (iv. A), i Madag. 



Thelasis Blume. Orchidaceae (n. 16). 12 Indomal., China. 



Thelepogon Roth, ex Roem. et Sch. Gramineae (2). i Abyss, to India. 



Thelesperma Less. Compositae (5). 8 Am. 



Thelygonaceae Cynocrambaceae. 



Ttielygonum L. (CynocrawbeTourn. q.v.). Cynocrambaceae. 2 Medit., 

 W. and C. As , incl. T. Cynocrambe L. (C. firostrata, Gaertn.). 



Thelymitra Forst. Orchidaceae (n. 2). 20 Austr., Malaya, N.Z. Fl. 

 almost reg. Some fert. themselves in bud, the fl. afterwards ex- 

 panding. 



Thelypodiopsis Rydberg (Thelypodium p.p.). Cruc. (i)- 2 Rockies. 



Thelypodium Endl. Cruciferae (i). 18 U.S., Mexico 



Themeda Forsk. (Anthistiria, q.v.}. Gramineae (2). 15 palaeotrop. 



Themistoclesia Klotzsch (Anthopterus EP.}. Ericaceae (in. 2). 3 

 Colombia. 



Thenardia II. B. et K. Apocynaceae (n. 2). r Mexico. 



Theobroma L. Sterculiaceae. 12 trop. Am , incl. T. Cacao L., T. 

 pentagona Bernoulli and others producing cacao, cocoa, or chocolate. 

 The young 1. are red and pendulous. The fls. are borne on the old 

 wood, and give large tough berry-fruits, containing exalbum. seeds, 

 which after roasting &c., yield cocoa or chocolate. The pressed seeds 

 yield cocoa-butter. 



Theodora Medic. (Schotia Jacq.). Leguminosae (u. 3). 6 trop. and 

 S. Afr. 



Theodorea Barb. Rodr. (Gomesa EP.}. Orchidaceae (il. 19). i Brazil. 



Theophrasta L. Theophrastaceae. 4 trop. Am., W.I. The upper part 

 of the stem bears thorny scales. Serial buds occur in the leaf-axils 

 and ultimately cause the phenomenon of cauliflory, for fls. arise in 

 the axils of scale-1. on these compressed shoots. 



Theoplirastaceae (EP. ; Myrsinaceac p.p. BH.}. Dicots. (Sympet. 

 Primulales). 4 gen., 45 sp., trop. Am., Hawaiian Is. Trees and shrubs 

 with alt. exstip. L, often crowded at end of stem. Fl. $ or S ? , 

 reg. K 5; C (5), A 5 with 5 stds., G i-loc. with oo ovules on free 

 central or rarely basal plac. Drupe. Endosp. Genera : Theophrasta, 

 Deherainia, Clavija, Jacquinia. 



Theriophonum Blume. Araceae (vn). 5 Indomal. 



Tfcermium (Cl.), a hot-spring formation. 



Thermopsis R. Br. Leguminosae (in. 2). 15 Himal. to Carolina. 



