]2 



TETEAGONIACE^. 



Tetbagonia implexicoma. 



J. Hook. Flor. Tasman. i. 148, ii. 362 ; F. M. Plants of Vict. tab. xiii. ; 



Tetragonella implexicoma, Miq. in Lehm. Plant. Preiss. i; 246. 



Widely spreading or frequently climbing, frutescent; leaves 

 ovate-rhomboid, occasionally narrow-lanceolate or broad-rhomboid ; 

 pedicels axillary, solitary or geminate, downy, longer than the 

 flower, often much longer ; lobes of the calyx semilanceolate, nearly 

 twice, as long as broad, almost of equal size, inside intensely yellow ; 

 stamens generally 12-16 ; styles two rarely three, rather long ; ovary 

 two- rarely three-celled ; fruit almost spherical, red, two-seeded 

 seldom three-seeded, without wings or teeth ; putamen small, con- 

 stricted above the middle, very slightly bilobed at the summit. 



Varietas Chathamica ; leaves broader, lobes of the calyx more 

 unequal and proportionately broader, styles 3-4 and rather shorter, 

 fruit three- or four-celled. 



In damp crevices of rocks on the sea-coast of Chatham-Island. 



The normal form of this plant occurs extensively from the west 

 coast of Australia along the whole south coast and on the Tasmanian 

 shores, trailing and climbing, often exposed to the spray of the sea, 

 over sand-ridges and particularly rocks or trees, thus forming not 

 unfrequently graceful festoons. It furnishes as good a spinage as 

 T. expansa. 



The calyx is oftener foiir- than five-lobed. The fruit ripens very 

 scantily. Both T. expansa and T. implexicoma produce always 

 bisexual flowers. 



This appears an appropriate occasion to contrast the characters 

 of Tetragonia expansa with those of T. implexicoma, inasmuch as 

 probably both species occur promiscuously in New Zealand and its 

 dependencie.% and as the Chatham-plant slightly infringes on some 

 of the characters, by which in Australia both its Tetragonise can be 

 easily recognized. 



Tetragonia expansa. 

 Murray in Comment. Goettingens. vi. 13, t. 5 (1783) ; Seopoli, Delicise Faunae 

 et Florae Insubric^, i. 32, t. 14 j Solander in Alton Hort. Kew. ed. i. vol. 

 ii. 178 ; Tkunb. in Transact. Linn. Soc. ii. 335 ; Willd. Spec. Plant, ii. 1024 ; 

 Bot. Magaz. 2362 ; Cand. Plant. Grass, t. 114 ; Cand. Prodr. iii. 452 ; 

 Endlicb. Prodrom. Flor. Insul. Norfolk. 72 ; Eiob. Voy. de rAstrolab. i. 

 320 ; Payer in Annal. des Scienc. Naturell. 3 serie, xviii. 240-245, pi. 13 ; 

 J. Hook. Flor. Nov. Zeel. i. 77 ; Flor. Tasman. i. 147 ; T. Japonica, 

 Thunb. Flor. Japon, p. 208 (1784) ; T. halimifolia, G. Forst. Florul. Insul. 



