584 



SCROPHULARINE.E. LXXVI. BUCHNERA. 



species contained in this section are all so much alike, and run 

 into each other by such minute or vague characters, that Mr. 

 Bentham would have been disposed to consider them as only 

 varieties of each other, had he been better acquainted with the 

 American species, or had he been possessed of more numerous 

 specimens. 



1 B. JU'NCEA (Cham, et Schlecht, in Linnaea, 2. p. 590.) 

 stem simple, rushy, clothed with 4 rows of adpressed leaves ; 

 panicle short, contracted, terminal. Ti . S. Native of tropical 

 Brazil. Leaves indexed at apex, with scabrous margins. 



Rushy Buchnera. PI. 2 to 3 feet. 



2 B. PALU'STRIS (Spreng. syst. 2. p. 805.) scabrous, nearly 

 glabrous ; stem slender, a little branched ; leaves narrow-linear, 

 quite entire, or the lower ones are small and obovate ; spike 

 loose, few-flowered, with lanceolate-linear bracteas ; tube of 

 corolla about twice as long as the calyx ; fructiferous calyx 

 erect. If. S. Native of Guiana. Peripea palustris, Aubl. 

 guian. 2. p. 628. t. 258. Flowers purplish. 



Marsh Buchnera. PI. 1 foot. 



3 B. ELONGA'TA (Swartz, fl. ind. occ. 2. p. 1061.) scabrous 

 from strigae ; stem nearly simple, leafy at base ; leaves oblong, 

 quite entire : superior ones linear ; spike loose, few-flowered ; 

 tube of corolla about twice the length of the calyx ; fructiferous 

 calyx erect. % . S. Native of America, from Carolina on the 

 north, to Rio Grande do Sul on the south ; and the West India 

 Islands Plum. icon. 19. t. 17. Erlnus Americanus, Mill. 

 diet. ? Corolla violaceous, or purplish blue. 



Elongated Buchnera. PI. 1 to 2 feet. 



4 B. TENE'LLA (R. Br. prod. 437.) scabrous, rather glabrous; 

 stem slender, a little branched ; leaves narrow-linear, quite en- 

 tire ; spikes rather loose ; bracteas ovate-lanceolate, ciliated ; 

 corolla small, with a slender tube, which is about twice as long 

 as the calyx ; fructiferous calyx hardly incurved. 7 . S. Native 

 of New Holland, on the north coast. Calyx glabrous or downy. 



Slender Buchnera. PI. 



5 B. LINEA^RIS (R. Br. prod. 437.) scabrous ; leaves oblong : 

 superior ones linear, obtuse, quite entire ; spike loose ; lower 

 bracteas linear : superior ones ovate-lanceolate ; calyx downy, 

 hardly incurved ; tube of corolla a little exserted. TJ. . S. Na- 

 tive of New Holland, within the tropic, Carpentaria. 



Z/inear-leaved Buchnera. PI. 



6 B. PUBE'SCENS (Benth. in Hook. comp. 1. p. 365.) sca- 

 brous ; lower leaves oblong : superior ones linear, all quite en- 

 tire, obtuse ; spikes many-flowered ; bracteas ovate-lanceolate, 

 subciliaied ; calyxes downy, a little incurved : fructiferous ones 

 with an oblique mouth ; tube of corolla a little exserted. If . 

 G. Native of New Holland, in marshy lands on the Endeavour 

 River, north coast, Cunningham. 



Downy Buchnera. PI. 



7 B. RAMOSI'SSIMA (R. Br. prod. 438.) scabrous, much branch- 

 ed ; rameal leaves quite entire, linear-lanceolate ; spikes elon- 

 gated, many-flowered ; bracteas ovate-lanceolate, subciliated ; 

 tube of corolla more than one half longer than the calyx, which 

 is incurved in the floriferous state, pilosely hispid at top, 

 straiglitish in the fructiferous state. 1. S. Native of New 

 Holland, on the east and north coast, within the tropic. 



Much-branched Buchnera. PI. 



8 B. DU'RA (Benth. 1. c. p. 366.) glabrous, or a little hispid 

 at the base ; stem a little branched ; lower leaves obovate : 

 superior ones oblong, quite entire : upper ones linear ; spike 

 dense at apex, many-flowered ; bracteas ovate-lanceolate, subci- 

 liated ; tube of corolla exserted ; capsule equal in height to the 

 calyx, which is straight in the fructiferous state. 7/ . G. Na- 

 tive of the Cape of Good Hope, as in Uitenhage and Caffreland, 

 Ecklon and Dr&ge. 



Hard Buchnera. PI. 



9 B. GLABRA'TA (Benth. 1. c.) glabrous, or hardly hispid at 

 the base ; stems erect, nearly simple ; lower leaves broad : 

 superior ones linear or oblong ; spikes dense, short ; bracteas 

 ovate-lanceolate ; tube of corolla exserted ; capsule one half 

 longer than the straight calyx. 11 . G. Native of the Cape of 

 Good Hope, near Rondebosch, Ecklon ; Katberg, Drege. 



Glabrous Buchnera. PI. 5 to 1 foot. 



10 B. GRA X CILIS (R. Br. prod. 437.) stem simple, glabrous ; 

 lower leaves obovate : superior ones oblong, all obtuse and 

 entire ; spike loose ; bracteas ciliated, one half shorter than the 

 calyx; top of capsule exserted. T.G. Native of New South 

 Wales, near Port Jackson. 



Slender Buchnera. PI. 



11 B. ASPERA'TA (R. Br. prod. p. 438.) very scabrous; lower 

 leaves lanceolate-oblong, few-toothed : superior ones linear-lan- 

 ceolate, quite entire ; bracteas lanceolate-ovate, one half shorter 

 than the calyx ; fructiferous calyx oblique at top ; capsule in- 

 closed. 11 . S. Native of New Holland, on the north coast, 

 within the tropic. 



Far. ft, anguslifdlia (Benth. 1. c.) leaves narrower. If.. 1 . S. 

 Native of Goulburn Island, Cunningham. 



Var. y, tomentosa ; plant rather tomentose ; lower leaves ob- 

 long, obtuse, coarsely toothed : superior ones linear, obtuse, 

 quite entire ; stem much branched. Native of Java, in grassy 

 inundated places. Buchnera tomentosa, Blum, bijdr. p. 740. 



Rough Buchnera. PI. I to 2 feet. 



12 B. URTIC^EFOLIA (R. Br. prod. 437.) scabrous, smoothish 

 or pubescent ; lower leaves approximate, oblong, obtuse, tooth- 

 ed, as well as the middle ones, which are lanceolate and distant ; 

 spike loose ; bracteas lanceolate, ciliated, one half shorter than 

 the calyx ; tube of corolla about twice as long as the calyx ; top 

 of capsule exserted. i;. S. Native of New Holland, on the 

 east coast, about Port Curtis, within the tropic. 



Nettle-leaved Buchnera. Fl. July, Aug. Clt. 1824. PI. 1 

 to 2 feet. 



13 B. HI'SPIDA (Hamilt. ex D. Don, prod. fl. nep. p. 91.) 

 hispid from long hairs, nearly simple, leafy at the base ; leaves 

 oblong, toothed a little : superior ones linear ; spike lax, many- 

 flowered ; tube of corolla hardly exserted. O- S. Native of 

 Gambia, ex herb. Hook. ; mountains of the East Indies, Wall., 

 Royle, &c. 



Hispid Buchnera. Fl. July, Oct. Clt. 1818. PI. 1 foot. 



14 B. AMERICA'NA (Lin. spec. 879.) pilosely hispid, very 

 scabrous, or at length glabrous ; stem nearly simple, leafy at the 

 base ; leaves oblong or lanceolate, a little toothed : superior 

 ones linear ; spike rather loose ; tube of corolla about twice the 

 length of the calyx ; fructiferous calyx straight. Q. G. Na- 

 tive of North America ; Southern States, to St. Louis, Drum- 

 mond ; Mexico and Panama. Plant very variable. 



American Buchnera. Fl. June, Aug. Clt. 1733. PL 1 

 foot. 



15 B. MACRA'NTHA (Benth. 1. c. p. 366.) pubescently sca- 

 brous ; leaves lanceolate, subdentate, remote ; spike rather 

 loose ; tube of corolla hairy, 5 times longer than the calyx. 

 Q. S. Native of Sierra Leone. Habit of B. Americana. 

 Calyx covered with clammy hairs. Corolla about an inch long ; 

 lobes of the limb large and broad. 



Long-flowered Buchnera. PI. 1 to 1 1 foot. 



16 B. PUSI'LLA (H. B. et Kunth, nov. gen. amer. 2. p. 340.) 

 hispidly scabrous ; stem nearly simple, and nearly terete ; leaves 

 nearly opposite : lower ones obovate-oblong : superior ones 

 linear, quite entire, 1 -nerved ; spike solitary, calyx shorter 

 than the tube of the corolla, but exceeding the capsule. Q. 

 H. Native of New Granada. Flowers subdistich. 



Least Buchnera. PI. 1 to 4 inches. 



