Itucopogon .'] 



LXVII. EPACUIDEyE. 179 



I Lea\ 



Sepals obtuse l^. L. coJlhms. 



Sepals acuminate 21, L, compactus. 



Leaves (3 to 4 lines) Ihiear-lanceolatc, acuminate, twisted . . 20. L. (jlacialis. 

 Loaves mostly broad and scarcely exceeding 2 lines, occasionally 

 linear and 3 lines long in the first 2 species. 

 Leaves, at least the upper ones, mucronate-acate and squarrose. 



Sepals acute 22. i. squarrosia. 



Leaves all obtuse. Lower bracts leaf-like. 

 Sepals narrow-acuminate. Corolla shortly exceeding the 



calyx. Eastern species 23. Z. MlcrophjUas. 



Sepals rather obtuse. Corolla twice as long as the calyx. 



Western species 24. Z. ictragonus, 



spikes cyluidrical. Bracts, at least the lower ones, leaf-like. 

 Uaves vei7 spreading or reflex ed. 

 Leaves orbicular-cordate, obtuse, 3 lines diameter .... 25. i. j^hjUodachjs, 



Leaves cordate, acuminate, not 2 lines broad 26. Z. glabellas. 



mvcs erect or spreading, ovate and 1 line to lanceolate and 3 

 iiues long, not cordate, nearly flat 27. Z. elatlor. 



r^^ ■ ®*^**®" — Spikes all terminal or also in the 7q)per axilSy short and dense^ 

 (cylindrical and rather dense. Leaves nearly fiat, the margins neither thickened 7wr 



i'^^' ^^^^<^^ly small and oliase. either stronaly ribbed or the midrib pronimeiitly at the 



^- Ovary ^.celled, "^ ^ 



^aves ovate, very flat, about 1 line long, scarcely ribbed / . - 28. L. florulentus, 



o .^ ovate or ovate-lanceolate, 2 to 3 lines long, stroun;ly ribbed. 



Spikes short "^ ..!... 29. i. striatus, 



leaves ovate-lanceolate, 2 to 4 lines long, strongly ribbed. Spikes 



^ong- Plant softly viUous 30. Z. lasiostachyus. 



a\es oblong or oblong-lanceolate, 2 to 4 lines long, the midrib at 

 ^east proouuent. Spikes dense 31. Z. carinatus. 



ves narrovv-lauceolate. Spikes cylindrical, many-flowered . . 37- Z. tenuis. 



erA^i^^r^' ^' ^^^^^"^^^^oVi^,— Inflorescence and ovary of the Striatffi. Leaves small, 

 ^^t, hnear, obtuse, alt opposite. 



aves with thickened margins, 2-furrowxd underneath .... 32. Z. opponens, 



2 '^^ ^"^^ smooth underneath 33. Z. oppositifoUus. 



leaved /'^^''^^r' ^^' ^' i^siophyllus, 57. Z. fimhriatxis, and perhaps a few other small- 

 but npyp^^^if ^' ^^^ ^^^ ^^^^'^^ tere and there opposite, especially on the sterile branches, 



^ ail opposite as in the present series.) 



^e^^^Tr ^r P^"^"^"^-^^'— Spikes all terminal or also in the npper axils, short and 

 <^^Uel ^^^^^^^^^^ ^nd rather dense. Leaves more or less concave or keeled. Ovary 2- 



Wjf ' •? ^^""'"^^^ lanceolate, under i in. long, 

 sessue. ^ Spikes cylindrical, many-flowered. 



1)n ^^^^^^^t^ and exceeding 1 line or obtuse and under 1 



Lea ,^^^*^ol^s small, acuminate 34. Z. (amansct72us. 



ves obtuse, ciliate with fine hairs. Bracteoles acute, nearly 



Icav ^^^ ^^ ^ he calyx 35. Z. bracteolaris. 



i^^..\\ P^^'ol^te. Spikes short and few-flowered. Brac- 



sX--'^^^^^ 



fpni.*. \i r"^'"^«^t-. oniKcs snort ana lew-nowereu. i^rau- 

 Wli ^^^^'^h^^se 36. Z. ^/^^««*. 



Spikes !H ^""'inal, c/lindricaJ, elongated. Leaves rather narrow 37. L. tenuis. 

 hnp-^^I Seminal, short and dense. Leaves rather broad, im- . ,. . , 



Spikes r '' ^^-^^ a^^p^^^'"'^''- 



manv fl '"^l ^°^ '^ the upper axils, short and dense but 

 'a^iy-flowered. Leaves distant. 



n2 



