THE FLOBA OF THE NOETHERN TEEEITOEY. 209 



1. B. intratropica {F.v. M.), Ndz. — Ravines of the sandstone tableland 

 at the head of the Roper and Limmen Bight Rivers, F. v. M. 



2. B, polystemonea, F. v. M. — Brindley's Bluff, McDouall Stuart's 

 Expedition. 



3. B. virgata, Andr. — Sandstone precipices, Victoria River, rare, F. v. 

 Mueller. Twiggy Heath Myrtle. 



12. CALYTRIX, Labill. 1806. 



(Calycothrix, Meissn., 1837 ; Trichocalyx, Schau., 1840 ; Calycothiix, 

 Labill, 1806; Calythrix.) Fringe Myrtle or Hair cup. 



A. Calyx-tube slender, slightly fusiform and adnate to the ovary below 

 the middle, the upper slender part terete, free, enclosing the base of the style, 

 which is usually persistent, the staminal disk forming a ring round it, but 

 free from it. 



Leaves from under V2 line to about 1 line long, minutely ciliate and 

 usually acute and prominently keeled. Petals narrow, acute. — 7. C. micro- 

 phylla. 



Leaves oblong-lanceolate, acute, 4 to 6 lines long, not ciliate. — 

 6. C. megaphylla. . 



B. Calyx-tube cylindrical, attenuate at the base, but not contracted above 

 the ovary, the free part scarcely longer than broad. Bracteoles more than 

 half as long as the calyx-tube. Calyx-lobes short and broad, with a long hair- 

 like awn. — 4. C. conferta. 



Bracteoles not half as long as the calyx-tube. Calyx-lobes ovate- 

 lanceolate, acuminate, tapering into a short awn. — 3. C. arborescens. 



C. Calyx-tube pubescent, oblong, more or less contracted above the 

 ovary, the free part short ; lobes with very short awns or points. 



Calyx-tube 2 to 2^/2 lines long, slightly contracted above the ovary. — 

 3. C. brachychaeta. 



Calyx-tube 1 line long, much contracted above the ovary. — 1. C. aehaeta. 



Calvx-tube nearly glabrous, 1% lines long, slightly contracted above the 

 ovary. Leaves very fine, 2 to 3 lines long. — 5. C. laricina. 



1. C. aehaeta, F. v. M. — ^Track to Roper River, and Melville Island, 

 Gilruth and Spencer, July-August, 1911. 



North of 15°, W. S. CampbeU, 5/9/1911. 



Upper Glenelg River, N.W. Coast, Marten ; Victoria River and guUies, 

 and low stony ridges on Fitzmaurice River, F. v. Mueller. 



2. C. arborescens, F. v. M. — ^Amhem's Land, F. v. Mueller : Port Essing- 

 ton, Armstrong. 



3. C. brachychaeta, F. v. M. — Sandstone tableland, Amhem's Land, F. v. 

 Mueller. 



4. C. conferta, A. Cunn. — ^Port Keath, Cambridge Gulf, A. Cunningham ; 

 N.W. Coast, Bynoe. 



5. C. laricina, R. Br. — ^Amhem's Land and islands of the Gulf of Car- 

 pentaria, R. Brown. 



6. C. megaphylla, F. v. M. — ^McAdam Range, A. C. Gregory. 



7. C. microphylla, A. Cunn. — ^Darwin, G. P. Hill (2nd Series 103) 

 3/7/1913. 



