^ 



XITI. TREMANDRE.E. 129 



or haiiy ; albumen flesliy or almost cartilaginous. Embryo small, straiglit. 

 With a superior radicle. — Shrubs usually heath-like, glabrous or glandular- 

 hairy, with small alternate opposite or verticillate leaves, rai'cly with a stellate 

 tomentum and larger leaves. Plowers solitary, on axillary pedicels, usually 

 red or purple. In many species, as in Pittospore^E and Folygalece^ a flower 

 may here and there be found wath a 3-merous ovary and fruit. 



The Order is strictly confined to Australia, and although showing some affinity with Cheir^ 

 anthera in Fittosporece^ as well as with FoJygaleee proper, it is yet very different from 

 either ; the connection with Lasiopetalea^ insisted upon by Steetz, appears to rest almost 

 entirely on the valvate calyx, and on an occasional resemblance iu habit, which is, however, 

 partalcen in by Baaera and several other genera of Australian heath-iike shrubs, which have 

 httle else in common. 



Anthers continuous with the filament. Leaves alternate or whorled, 

 glabrous or glandular hairy. 

 Anthers 2-celled, or with 4 cells, 2 in front of the 2 others. Seeds 



with an appendage at the chalaza . . ' " 1* Tftratiieca. 



Anthers 4-celled3 the 4 cells on the same plane. Seeds without ap- 

 pendage 2. Platytheca, 



Anthers articulate on the filament. Leaves opposite, with stellate 



hairs. Seeds with an appendage *^. Tremanbha. 



1. TETRATHECA, Sm. 



Stamens apparently in a single series, the antliers continuous with the fila- 

 ment, 2-cellefl, or 4-cclled with 2 of the cells in front of the 2 others, more 

 01- less contracted into a tube at the top. Disk none. Capsule opeuinironly 

 at the edges. Seeds with an appendage at the chalazal end usually contorted. 

 —Glabrous or glandular-hairy. Leaves alternate, verticillate or scattered, 

 heath-like and entire, or flat and toothed, or reduced to minute scales. 



§ 1. Sterns ierete, leaf^ {except T. subaphylla). Ovules 1 or 2 in each cell Seeds 



hairy. (Eastern or southern species.) 



Leaves mostly verticillate. Ovules nsually2, superposed, or, if solitary, 

 attached helow the summit of the cell. 



leaves ovate, ohovate, or orbicular, tlat. Sepals ovate, obtuse ^^ . . 



scarcely acute, often reflexed c ' i ^''^f^- 



Leaves ovate to lanceolate, acute, with the margius recurved. Sepals 



acute or acuminate, not reflexed *' ^- ^^i^"^/^/'^- 



Leaves linear, the margius revolute. Sepals not reflexed .... 3. i. enciJoUa. 

 Leaves rarely subvcrticillatc. Ovules solitary, suspended from the sum- 

 mit of the cell 



Very glandular. Leaves elliptical-ohlong or ohovate, much narrowed ^ ^ , , , 



at the base. Petals large, obovate • • ^, T. planduhsa. 



Glabrous or hispid, rarelv glandular. Leaves linear, or, if broader, 



obtuse at the base. Petals oblong or scarcely obovate . ' • ; ^* ^-j^^fosa. 

 Glabrous and somewhat glaucous. Leaves all, or nearly all, reduced , . /;, 



to minute scales . ^* ^- subaphylla. 



§ 2. Stems very angnlar or flat, almost leafless. Ooules 2 or 4^ in each cell. Seeds 



hairy, (Eastern and western species.) 



Stems often 3-angled. Flowers 4-merous. Anther-tubes very short . 7- ^■>^'^f*'- 

 Stems fiat, 2-winged. Flowers 5-mcroiw. Anther-tubes long , . * »- -'- W^'^- 



VOL. I. ^ 



» 



