TEAZLE. 



TECTHNA. 



Common Teal (Qutrqutdula critea). 



TEAZLE. 



TKCU'MA (from Tecomaxochitl), a genus of PlanU belonging to 

 the natural order Bignoniacece. It has a campanulate 5-toothed calyx, 

 a ahoit-tubed corolla with a campanulate throat, and a 5-lobed bilabiate 

 limb ; 4 didynamous stamens with A uterile filament of a fifth ; a bila- 

 mellate tigma ; a silique-fortned 2 celled capsule, having the dUsepi- 

 menU contrary to the valves ; the seeds winged, disposed in 2 rows. 

 The specie* are erect trees or shrubs or scandent plants, with unequally 

 pinnate or digitate simple leaves with terminal panicles, and yellow or 

 flesh-coloured flowers. They are natives of the Old and New World 

 in tropical and sub-tropical climates. They are all elegant plants, and 

 well worthy of cultivation. 



T. radicam is a climbing glabrous plant with rough rooting branches. 

 It grows against a wall by throwing out roots from its branches in 

 the same manner as ivy. It has large flowers, which are called 

 Trumpet-Flowers. 



T. ttamt is a small tree. Its roots are reputed diuretic. 



Several other species of Tccoma have reputed medicinal virtues. 

 T. iptdtta is said to be a useful diuretic, also a cathartic. T. impel i- 

 gimotm and T. 1ft contain large quantities of tannin. 



TKCTIBKANCHIA'TA, Cuvier's name for the fourth order of 

 OasUropodous HoUtuca, and described by him as having the branchias 

 attached along the right side, or on the back, in form of leaves 

 (feuillets) more or less divided, but non-symmetrical. The mantle 

 covers them more or leas, and contains nearly always in its thickness 

 a small shell. The Tectibranchiata approach the Pccttnibranchiata in 

 the form of the organs of respiration, and live, like them, in the 

 waters of the sea ; but they are all hermaphrodites, like the Nudi- 

 branekiata and the Pulmouiferona Molliuca. [PKCTINIBRANCHIATA ; 



NCDIBRAXCHIATA.] 



The following genera are comprehended by Cuvier under this order : 

 Plfurobranrhiu, Cuv. ; Pleurobrancluta, Meckel (I'lrurobranchidtum, 

 Ulainv.) ; Aplyna, Linn. ; Dolabella, Lam. ; Ifotarchut, Cuv. ; Jlunatclla, 

 lllaiuv. ; Akera, Mull. ; Oattropteron, Meckel ; and Umbrella, Lam. 



Of these, PltunbrandHU, PleurobrancMaa, and Umbrella are treated 

 of in the article SENII-IITLLIDIAM ; and Akera, or Aceta, and Gatlro- 

 pteron, or Uattro/ilcra, under the article BULLID.K. Aplytia, or Laplyria 

 (tor Linnsius writes it both ways), DolabeUa, and Notarchut therefore 

 remain to be noticed hem. 



AplyM.Ed$n of the foot raised into flexible crest* and sur- 

 rounding the back on all aides, being capable even of being reflected 

 upon it ; bead carried on a neck more or less long ; two upper tentacles 

 hollowed like the ears of a quadruped ; two others flattened at the 

 edge of the lower lip; eyes below the first. On the back are the 

 branchial, in form of very complicated leaves (feuillets), attached to a 

 large membranous pedicle, and covered by a small pedicle equally 

 membranous, which contains in its thickness a horny and flat shell 

 The anus is pierced behind the branchial, and is often hidden under 

 the lateral crests. The vulva is in front on the right, and the penis 

 come* out under the right tentacle. A furrow, which extends from 

 the vulva to the extremity of the penis, conduct* the semen at the 

 time of coition. An enormous membranous crop Irads to a muscular 

 gizzard, armed witiiiu with cartilaginous and pyramidal corpuscles, 

 which accompany a third stomach beset with pointed books, and a 

 fourth in form of a csecum. The intestine is voluminous. These 

 animals fec3 on sea-weed (I-'ufiu). A particular gland pours out by 

 an orifice situated near to the vulva a limpid humour, which is said 

 to be very acrid in certain upeoies ; and from the border of the mantle 

 there ooxes abundantly a deep purple liquor, with which the animal 

 olours the tea for a considerable distance around when it perceives 

 ny danger. The egg* are deposited in long interlaced glairy filament*, 

 clicate as packthread. 



Cuvier instance* as examples from the European seas, A.faiciata, 

 A. punctala, and A. depilant. 



A. depilant. Blackinh, with large cloudy grayish spots or blotches, 

 or of different shades of brown tinged with blue or purple. It is 

 found in European seas, where it adheres to rocks. 



Aplytia depilant. 



Dolabella. Cuvier observes that this form only differs from tho 

 Aplytia in having the branchite and that which surrounds them at 

 the posterior extremity of the body, which resembles a truncated cone. 

 Their lateral crest, he adds, does not close on the branchial apparatus 

 leaving a narrow furrow, and their shell is calcareous. 



The species are found in the East Indian seas and Mediterranean, 

 where it has been found at a depth of six fathoms on sands. 



JJ. Rumphii may be given as an example. 



Shell of Dalabflla Rumphii. a, inirtc ; I, ouUldo. 



Notarchut. Animal furnished with a very small dorsal slit, which 

 is sometimes oblique ; foot elongated, and rather narrow ; branching 

 often very long, and capable of being protruded out of the cavity ; 

 operculuni rudimentary or null ; shell absent. 



A'. Curieri is an example. 



Aefarcftw (ktitrl, 



TE'CTONA, a genus of Plants belonging to the natural order 

 Vcrbenacca. It ii characterised by having a 5-C-toothcd calyx, which 

 becomes inflated over the growing pericarp ; corolla 1-petalled, 5-6- 

 cleft ; stamens 6, but often 6 ; germ superior, 4-celled ; cells 1 -seeded, 

 attachment central; drupe obtusely 4-sided, woolly, spongy, dry, 

 hid in the calyx. Nut bard, 4-celled. Seed solitary; embryo erect 

 without perisperm. 



The only species is the Teak-Tree, which grows to an immense size, 

 and is remarkable for its very long leaves, which are from 12 to 24 

 inches long and from 8 to 16 inches brood, and are compared by 

 oriental writers to the ears of the elephant. The best teak-timber for 

 hip-building was supplied to Bombay from the mountains of the 

 Malabar U bants, where the tree is found rather in detached clumps, 

 of some extent however, than in extended forests. It is also found 

 on the mountainous parts of the Coromandel coatt, along the banks 

 of the Qodavery up to Poloonsha. It proceeds fnr into the interior of 

 India, and may be seen in the mountains of Bundulcund, in tho form 

 however of only a moderate-sized shrub. Dr. Roxburgh introduced 

 the Teak into the low grounds of the Circars as early as 1790, aud 



