116 XII. PITTOSPOUE^. [Mariant/ius, 



frequently twining branches. Leaves entire, toothed, or the lower ones oc- 

 casionally lobed, Plowers blue, white, or reddish, in terminal compact pani- 

 cles, usually corymbose or almost lunbellate, rarely solitary or apparently 

 axillary from the extreme shortness of the flowerings branch. 



The genus is limited to Australia. It differs from BUlardiera solely iii the capsidar not 

 baccate fruit, which is the cause of several species having been described in both genera when 

 the fruit has not been seen. The petals are in general more spreading than in BUlardiera , 

 but M. lignoniaceas has a tubular corolla, and the cyniose BiUardieras have the flowers of 

 Marianthus. 



^ M 



Series I. Procumbentes. — Branches sJiort, procumbent or jlexnose, 'not twmmg. 

 Leaves erotcded. Pedicels 1 to 3, terminaL Sepals verg pointed. Fetais spreading 

 from below the middle. Seeds o void -reni form, transverse^ and laterally attached. 



Leaves small or heath-like, glabrous or hispid with a few setre. 

 Flowering pedicels shorter than the leaves. Seeds much 



wrinkled , ; 1. M. procimhens. 



riowering pedicels much longer than the leaves. Seeds nearly 



smooth '. 2. J/, wicrophyllas. 



Leaves broadly obovate, \ in. or more, very hairy. Seeds smooth 3. M. villosvs. 



Series TI. Oncosporese. — Twiners. Leaves distinctly petiol ate, 0% ate -lanceolate or 

 lanceolate, very obtuse and cordate at the base. Sfpals very acute or subulate. Petals 

 various. Seeds globular, muricate (or taherculate ?). 



Plowers small, in loose terminal racemes or corymbs. Petals 

 S])reading from below tlie middle. Seeds murieate. 

 TTairs loose, rather rusty. Ovules 3 or 4 in each cell , . . 4. M. grannlati^s. 



llairs silky-white. Ovules numerous 5. 3L parvijlorus. 



Tlowers rather large, on axillary pedicels. Petals united in a tube 



ahove the middle. (Seeds tubereulate?) &. M. bignoniacevs. 



Series IIL Normales. — Ticiners, or rarely branches short and fernose, or nearly 

 straight. Leaves sessile, or narrowed into a petiole. Sepals 'very acute or subulate. Ph- 

 ials blue or white, usually connivent to the middle. Seeds (where known) smooth, nearly 

 globular. 



4 



Pedicels 1 to 3, sessile amongst the last leaves, or axillary. 

 Leaves narrowed at the base. Ovary glabrous. 

 Pedicels slender, mostly above i in. Ovary distinctly stipitate 7. 3f. Drummondianus. 

 Pedicels very short. Ovary scarcely contracted at the base . 8. M. tenuis. 

 Flowers in terminal corymbs or short racemes, usually numerous. 

 Upper leaves sessile, obtuse at the base. Corymb or raceme 



loose and few -flowered '. . . 9. i^/. la.riflorus. 



Leaves narrowed into a petiole. Corymbs many-flowered. 



Flowers blue, often spotted. Sepals very hairy . . . . \0. M. cceruleo-punciatus. 

 llowers white. Sepals rigid, glabrous or slightly hairy. 



Leaves lanceolate or linear. Style long aud subulate . 11. M. candidus. 

 Leaves ovale or broadly lanceolate. Style short and 



thick, with a broad stigma ]2. M.foribundns. 



Series IV. Txct^,— Twiners, or rarely branches short and flexnose. Leaves narrowed 

 into a petiole. Sepals ovate or shortly lanceolate. Petals red or streaked with purpht 

 very oblique, and connivent to the middle.. Seeds (where knotvn) smooth. 



Filaments dilated, at least at the base. Twiners with red flowers. 



Filaments dilated at the base only 13. 3/. erubescens. 



Filaments much dilated above the middle ]4, M.nngens. 



Filaments scarcely flattened. Branches flexuose, or sliirhtly 

 twining. Flowers streaked. 



Corymbs dense. Pedicels stout, 1 to 2 lines 15. A/, lineatus. 



Corymbs loose, few-flowered. Pedicels slender, 3 to 4 lines . 16. M. pectus. 



