100 XXVI. ERIOCAULACE., [Zriocaulon 
7. E. andongense Welw. ms. in herb. 
Glabrous, somewhat fleshy, subglaucous-green becoming yel- 
lowish-green when older; leaves radical, ensiform, acute, rosulate, 
erecto-patent, somewhat conspicuously fenestrate when dried ; 
scapes numerous, subfiliform, compressed-quadrangular ; sheaths 
slightly shorter than the leaves, margins united to within a short 
distance of the oblique subacute tip ; flower-heads compact, sub- 
globose when ripe, fuscous, monecious, peripheral flowers female, 
inner male, all trimerous ; receptacle villous, bracts and perianth- 
leaves glabrous ; involucral bracts shorter than the disc, bluntly 
obovate or subacute, pale straw-coloured and shining; floral 
bracts oblanceolate, acute, fuscous; female flowers on a short 
villous pedicel, 2 sepals larger, boat-shaped, keeled, acute, broadly 
faleate in side view, the third shorter, narrowly oblanceolate, 
bluntish, almost flat ; internode between calyx and petals very 
short ; odd petal larger, linear-lanceolate, with bifid apex, the 
others linear enlarging upwards, with a blunt irregularly crenate 
apex; ovary trigastrous, the 3 filiform styles slightly exceeding 
the long petal; seeds elliptical, striolate, male flowers shortly 
stalked, calyx funnel-shaped, sepals obliquely oblanceolate, blunt, 
free or 2 more or less connate in the lower half; petals rudi- 
mentary, anthers 6, 2-celled, black. 
Plants 5 to 8 in. high; leaves $ to 2 in. long by $ to 13 lines 
broad, scapes reaching 8 in., heads 13 to 2 lines across. Involu- 
cral bracts 1 line by 4 line, floral bracts a little over 1 line by 
between 4 and 3 line; pedicel of female flower 3 line, the larger 
sepals ? by 4 line, the third slightly shorter; internode } line, 
large petal 2 by 4 line, smaller petals 4 line long. Stalk of male 
flower + line long. 
Near #. transvaalicum N.E.Br. but distinguished by its lighter 
flower-heads, glabrous bracts and perianth-leaves, broader sepals 
of female flower, etc. 
Punco ANDONGO.—Growing gregariously in spongy places on the 
higher rocks of Pedra de Cazamba in the presidium ; beginning of May 
1857. No. 2442. Rather plentiful in spongy rocky places by springs on 
the huge rocks towards the south of the presidium. Fonte de Salgado ; 
middle of April 1857. No. 2448. Wet places by the cataract of 
Condo (De Estefania). Not yet in fl.; March 1857. No. 24430. 
8. E. submersum Welw. ms. in herb. 
A submerged glabrous annual herb, with numerous densely 
rosulate, linear-filiform, long-pointed leaves, spreading under water 
in the form of a vividly green star, soon becoming extremely 
flaccid when exposed to the air; scapes numerous, crowded in the 
centre, erect, stiffish, 5-to 7-angular, flattened when dried ; sheath 
shorter than the leaves, edges united to within a short distance of 
the thinly membranous, easily broken, often bifid or trifid apex ; 
flower-heads compact, depressed-globose, black, with a sparse 
whitish puberulence, moncecious, male and female flowers mixed, 
trimerous ; receptacle discoid, slightly hairy; involucral bracts 
glabrous, obovate-spathulate with very blunt or rounded apex ; 
