THE TLOEA OF THE NOETHEEN TEREITOEY. 183 



From the carpels being rounded at the top the plant falls into Section II. 

 of the genus Abutilon. It appears to be nearest A. muticum G. Don, but the 

 peduncles are longer than the petioles, the calyx-lobes are shorter than the tube, 

 and the capsule, although immature, is much shorter than the calyx. 



A. tubulosum, Hook ; A. cryptopetalum, F.v.M. ; A. geranioides, Benth. ; 

 A. longilobum, F. v. M. ; A. exonemum, F. v. M. ; (in Nat. Herb. Census), 

 and A. asiaticum, G. Don (in Gen. Syst., No. 503, 1831) ; recorded from North 

 Austraha. 



2. MALVASTRUM, A. Gray. 1849. 

 (Nototriche, Turcz., 1863 ; Malva, partly). 

 1. M. spicatum, A. Gr. — 30 miles N.W. of Twitchera Gap, Macdonnell 

 Ranges, G. F. Hill (No. 160), 10/5/1911. 



Recorded. Victoria River and Gulf of Carpentaria, F. v. Mueller. 

 M. tricusindatum, A. Gray.; recorded from North Australia in Nat. Herb. 

 Census. 



3. PLAGIANTHUS, Forst. 



( Asterotrichion and Blepharanthemum, Klotzsch. ; Lawrencia, Hook. ; 

 Halothamnus, F. v. Mueller). Hemp bush. 

 Flowers in dense spikes.^-4. P. densifiorus. 

 Flowers axillary, solitary or clustered. 



The herbaceous parts with scurfy scales . — 2. P. squamatus. 

 Glabrous or slightly pubescent herbs. 



Flowers all sessile. — 1.. P. glomeratus. 

 Male flowers stalked. — 3. P. difiusus. 



1. Pla^ianthus glomeratus, Benth. — 10 miles W.S.W. of Stuart Ranges, 

 2/6/11, G. F. Hill (No. 224). Thorny Hemp bush. 



2. P. squamatus, Benth. — Recorded. Swan River, Drummond, 4th 

 Coll. (No. 106), Preiss (No. 1231.). 



3. P. diffusus, Benth (in Nat. Herb. Census); and P. densifiorus, E. Baker 

 (in Britt. Journ. Bot. XXX., 1892), are recorded from North Australia. 



4. SIDA, Linn. 1735. 



{Diadesma, Bafin, 1836 ; Dictyocarpus, Wight., 1837 ; Fleischeria, Steud., 

 1844 ; Malvinda, Dill., 1787). All yield good fibre, Sida hemp. 



I. Calyx without prominent ribs or angles. Carpels strongly reticulate 

 on the sides, indehiscent, or nearly so, never aristate. Perennials or shrubs. 

 Flowers 1 or 2 together, on slender pedicels, articulate near the top.- 



Calyx-lobes obtuse, not protruding beyond the broad part of the fruit. 

 Carpels strongly wrinkled on the back. Fruit 2-| to 4 lines 



diameter. — 2. S. corrugata. 



Carpels not, or very slightly wrinkled . Fruit not exceeding 2 lines 



diameter. Leaves and flowers very small. — 5. S. intricata. 



Calyx-lobes acute or scarcely acuminate, remaining herbaceous, and 



not much enlarged after flowering. 



Leaves ovate or ovate-lanceolate, cordate at the base. — 6. S. 



macropoda. 

 Leaves lanceolate or oblong-lanceolate, not cordate. — 12. S. 

 virgata. 

 Calyx-lobes acuminate, with long, subulate, woolly points. — 3. S. 



cryphiopetala. 

 Calyx-lobes enlarged and thinner or scarious after floweririg. — 7. S. 

 physocalyx. 



