52 102. LYCOPODIUM. 2. RHOPALOSTACHYS. b. DIPHASIUM. 



long; sporophylla ovate-acuminate, subscariose, lacerate, nearly keeled, 

 with a squarrose cusp. Closely allied to L. complanatum L. 

 Java, Celebes; Ceylon, North India. 



(49) I>. scariosuni, JFVw*f., Spring, Mon., 1, 108 ;Bk., Fern All., 29. 

 Main stem wide-trailing or ascending; branches ascending, irregularly 



dichotomous, reaching a length of 1530 cm.; branchlets flattened, dorsi- 

 ventral, 3 4Vs mm. broad including the lateral leaves. Leaves rigidly 

 coriaceous; those of the main stem isomorphous, scattered, erected, adpressed, 

 sublanceolate, at length scariose at the apex; leaves of the branchlets 

 heteromorphous, placed in 2 parallel planes; lateral leaves (of the lower plane) 

 laxly placed in 2 opposite rows, arcuate-ascending, lanceolate, 3 4V mm. 

 long, entire, acute, keeled, distinctly decurrent; intermedia! leaves (of the 

 upper plane) closely placed in 2 close rows, erect, adpressed, sublinear- 

 oblong or sublanceolate, very small, entire, .often scariose at the apex. 

 Spikes single or rarely double, 2' 2 5 cm. long, cylindrical, thick, sessile 

 or stalked at the end of the branchlets, often several to many to a branch, 

 the stalks provided with remote, subulate, minute bracts; sporophylla 

 broadly ovate, apiculate, the apex and margin finally lacerato-scariose. 

 Mindanao; Australia, New< Zealand. 



(50) L. volubile. .For**., Spring, Mon., I, 105; Rac., Flor. Btz., 

 I, 245; Hk., Icon. PL, X, tab. CMLXVI; Hk. & Grev., Ic. Fil., tab. CLXX ; 

 Engl. & Prantl, Nat. Pfl.Fam., I 4 , fig. 380; L. spectabile, BL, Enum., 264. 



Main stem wide-scandent, wiry, stramineous, copiously branched, 

 bearing radially arranged, uniform, ascending, subulate leaves ca 3 5 

 mm. long; barren branches flattened, dorsiventral, erecto-patent, compound, 

 the ultimate branchlets divaricating, 5 10 cm. long. Leaves of the 

 branches heteromorphous, pale-green, thin but firm, placed in 3 parallel rows; 

 lateral leaves (of the central plane) arcuate-ascending, 3 6 mm. long, 

 acute, entire, with a decurrent base 2 mm. broad ; dorsal leaves (of the 

 upper plane) smaller, linear, acute, approximate, adpressed, in 2 close planes; 

 ventral leaves (of the lower plane) very small, spine-like, distant, placed 

 in 1 row. Spikes very abundant, pendulous or nutant, cylindrical, 1 Y a 7 V 

 cm. long, terminal and lateral on copiously branched, bracted peduncles 

 forming panicles apart from the barren branches; sporophylla ascending, 

 imbricated, broadly ovate, small, acuminate, toothed below the cusp. 



Malaija to Polynesia, Neiv Zealand, New Caledonia, North Australia. 



