372 



TREMANDRE^E. I. TETRATHECA. II. TREMANDRA. PITTOSPORE^E. I. BILLARDIERA. 



FIG. 72. 



Hairy Tetratheca. Fl. July, August. Clt. 1822. Shrub | 

 to 1 foot. 



4 T. DENTICULA'TA (Sieb. ex Spreng. syst. append, p. 147.) 

 leaves opposite, linear, revolute, a little denticulated, and are 

 pilose as well as the branches ; sepals lanceolate, acute, glandu- 

 lar. Tj . G. Native of New Holland. Flowers red. 



Denticulated-leaved Tetratheca. Shrub 1 foot. 



5 T. ERIC^FOLIA (Smith, exot. bot. p. 87. t. 20.) leaves linear, 

 5-6 in a whorl, with revolute scabrous margins; branches sca- 

 brous ; sepals ovate, acutish. T? . G. Native of New Holland. 

 Rudge, in Lin. trans. 8. t. 11. Peduncles and calyxes smooth. 

 Flowers somewhat nodding. Petals obovate, rose-coloured, but 

 sometimes white (f. 72.). 



Heath-leaved Tetratheca. Fl. July, Aug. Clt. 1 820. Shrub 

 | to 1 foot. 



6 T. THYMIFOLIA (Smith, exot. 

 bot. t. 22.) leaves 4 in a whorl, lan- 

 ceolate, acute, ciliated ; branches 

 rather hairy ; sepals lanceolate, 

 acute, ciliated. T; . G. Native of 

 New Holland. Peduncles and 

 calyxes scabrous. Sepals more 

 acute than in T. ericce/olia, to which 

 it is nearly allied. Petals purple. 



Thyme-leaved Tetratheca. Fl. 

 July, Aug. Clt. 1824. Shrub ^ to 

 1 foot. 



7 T.RUBioiDEs(Cuning. in Fields, 

 geogr. new south wales, p. 336.) 

 leaves 5 or 6 in a whorl, linear, 

 falcate, upper surface scabrous ; 

 branches hoary ; peduncles soli- 

 tary, axillary, drooping. Tj . G. 



Native of New Holland on rocky declivities of the Blue Moun- 

 tains. Flowers purple. Allied to T. ericcefdlia. 



Madder-like Tetratheca. Fl. July, Aug. Clt. 1825. Shrub 

 1 foot. 



Cult. The species of this beautiful genus of little shrubs 

 deserve to be cultivated in every green-house, but they are very 

 difficult to preserve, as well as extremely difficult to procure, 

 as seeds seldom vegetate after a voyage from their places of 

 natural growth. They thrive best in a mixture of very sandy 

 loam and peat. Young cuttings will root freely if planted in a 

 pot of sand, with a bell-glass placed over them. 



II. TREMA'NDRA (from rpcfua, tremo, to tremble, to 

 shake, and avtp avSpos, aner andros, a male ; the anthers being 

 slightly fixed by their base to the points of the filaments, 

 shake from the least motion or breath of air.) R. Brown, ined. 

 and D. C. prod. 1. p. 344. 



LIN. SYST. Decdndria, Monogynia. Calyx of 5 sepals. Petals 

 5. Stamens 10; anthers 2-celled. Shrubs, with the habit of 

 Helidnthemun, beset with starry hairs. 



1 T. STELLI'OERA (R. Br. ined. and D. C. prod. 1. p. 344.) 

 erect ; leaves ovate, entire, under surface hoary, upper surface 

 beset with rough stellate hairs. Pj . G. Native on the eastern 

 coast of New Holland. Habit of plant like Hermdnnia or He- 

 lidnthemum alyssoides. Flowers purple ? 



Star-bearing Tremandra. Shrub 1 to 1-J foot. 



2 T. DIFF.U SA (R. Br. ined. and D. C. prod. 1 . p. 344.) dif- 

 fuse, much branched ; leaves ovate, with a few deep teeth, upper 

 surface glabrous, under surface scabrous from a few scattered 

 stellate hairs. Jj . G. Native of New Holland. Flowers 

 purple ? 



Z)^'*e-branched Tremandra. Shrub 1 foot. 



Cult. The species of this genus require the same treatment 

 as Tetratheca. 



ORDER XXV. PITTOSPO V RE^ (shrubs agreeing with 

 Pittosporum in many important characters.) R. Br. gen. rem. 

 ter. austr. p. 10. D. C. prod. 1. p. 345. 



Calyx of 5 deciduous sepals, which are sometimes free, and 

 sometimes united together to the middle (f. 73. a.) they are im- 

 bricate in the bud. Petals 5, hypogynous, with the claws con- 

 niving, sometimes united, with spreading lamina (f. 73. d. c.) 

 which are imbricate in the bud. Stamens 5 (f. 73. rf.) hypogy- 

 nous, distinct, alternating with the petals. Ovary 1, free (f. 73. 

 c.) with the cells or placentas 2-5 or many-seeded. Style 1 (f. 

 73. y.), crowned by numerous stigmas (f. 73. g.) which are equal 

 in number to the placentas or cells of the ovary. Pericarp capsu- 

 lar or baccate ; cells many-seeded, sometimes incomplete. Seeds 

 usually covered with glutinous pulp. Embryo minute, placed 

 near the umbilicus in a fleshy albumen, with a longish radicle 

 and short cotyledons. 



This order contains beautiful trees and shrubs, or climbing 

 shrubs as Billardiera, with alternate simple feather-nerved 

 leaves, destitute of stipulas, usually entire. Flowers terminal 

 or axillary, sometimes polygamous ; they are from white to yel- 

 low, usually of a bell-shaped form, with a spreading border. 

 This order is distinguished from the neighbouring tribes in the 

 seeds being enveloped in resinous pulp, and in the imbricate 

 aestivation of the petals and sepals. Nothing is known of the 

 properties of the plants contained in this order. 



Synopsis of the Genera, 



1 BILLARDIE'RA. Sepals and petals 5, which last have the 

 claws somewhat convolute at the edges, approximate. Berry 

 ellipsoid, terminated by the style. Climbing or twining shrubs. 



2 PITTO'SPORUM. Sepals (f. 73. a.) and petals 5 (f. 73. b.) 

 which last have their claws conniving into a connate tube (f. 

 73. d.). Capsule 2-3-valved, 1 -celled, with a dissepiment in the 

 middle of each valve. Seeds covered with resinous pulp. Erect 

 trees or shrubs. 



3 BURSA'RIA. Calyx 5-toothed. Petals 5, distinct. Cap- 

 sule compressed, obcordate, 2-celled, 2-valved. Seeds covered 

 with resin. A spiny, branched shrub. 



4 SENA'CIA. Calyx 5-toothed. Petals 5, distinct. Capsule 

 or berry 2-valved, half-2-celled. Seeds 4-8, arillate, adnate to 

 the middle or base of the dissepiment. Shrubs with the habit of 

 Celdstrus. 



I. BILLARDIE'RA (in honour of Jean Jacques Julien La- 

 billardiere, a celebrated French botanist, who visited Syria and 

 afterwards New Holland in d'Entrecasteux's expedition, author 

 of Novae Hollandiae plantarum specimen, 2 vol. 4to. &c.) Smith, 

 exot. bot. t. 1. D. C. prod. 1. p. 345. but not of Vahl. nor 

 Moench. 



LIN. SYST. Pentdndria, Monogynia. Calyx of 5 acuminated 

 sepals. Petals 5, with approximate claws, which are somewhat 

 convolute at their edges, forming a bell-shaped flower. Berry 

 elliptical, terminated by the style. Climbing shrubs, natives 



