444 LEIOSCYPHUS. 
ore complanatum truncato-bilabiatum integerrimum vel incisulum, 
omnino eplicatum, rarissime (facie tertid posticd perangusta adjecta) 
obtuse trigonum. Calyptra pyriformis, basi pistillidiis sterilibus 
obsita. Caupsula altiuscule pedicellata, oblonga, 4-valvis (perfecta 
haud visa). laferes dispiri. Andrecia in caule ramove apicalia 
mediave, spicata; bractee sub 10-jugze, lobulo antico incurvo aucte, 
monandre. 
Hab, et Distr. Leioscyphi in montibus tropicis et australioribus 
haud infrequentes, in temperatis borealibus nondum (quantum scio) 
inventi fuerunt. In Andibus sylvaticis 4 species, ad terram inter 
folia emortua,, ad saxa humectata, raro ad truncos vetustos legi. 
Quintam speciem, a me prietervisam, legit amicus JAMESON. 
There can be no question of the close affinity of this genus to Lophocolea, 
especially to the opposite-leaved species. ‘The flattened, ancipitous 
perianth of Lezoseyphus is an essential distinction, except when (as 
happens occasionally in certain species) a narrow postical face is super- 
added, making the perianth obtusely trigonous, and thus far assimilating 
it to the perianth of Lophocolea, whose deeply 3-lobed mouth, with each 
lobe bifid and often laciniate, however, is widely different from the 
truncate and entire, or very slightly cut, mouth of the perianth of 
Leioscyphus. The ramification affords an additional distinction, for the 
branches of Leioseyphus are normally postical, rarely springing from mid- 
axil of an underleaf, but towards one angle of it ; and sometimes a pair 
arise from the same axil, diverging to opposite sides of the stem, then 
assurgent. The subfloral branches, or innovations, however, spring 
occasionally from the lower axillary angle of a side-leaf, or bract ; and 
there are instances of four collateral innovations, two from the axil of the 
underleaf, or bracteole, and one from the axil of each of the lateral bracts. 
—Southbya, nobis in Ann. Nat. Hist. 1849, the nearest ally of Lezoscyphus, 
differs by its humble stature; creeping stem, with numerous long 
radicles; underleaves in the typical species none, where present minute 
and either simple or bifid; but especially by the 9 bracts being adnate 
to the shortly-emersed ancipitous bilabiate perianth. Apotomanthus n. 
gen., to be described below, differs from Southbya mainly in its trigonous 
perianth. 
1. L. Liehmannianus. Elata. F. late oblique semicordato-ovata, rotundata. 
F'@ duplo breviora ovato-rotunda ad 4 bifida, laciniis a basi lata 
tenniacuminatis, basin versus utrinque sub 3-spina. Br. oblate, 
ceeterum foliis conformes ; br! oblonga, profunde bifida, juxta simum 
unispina, margine externo utrinque spinis longis sub 5 armata. 
Per. oblongo-cylindracea, compressa, ore truncato integerrima. 
2. L. Chamissonis. Humilis. F. late obovato-oblonga, rotundata, retusa 
vel bifidula. IF! duplo breviora ovato-lanceolata ad 4 bifida, integer- 
rima vel basi unidentata. Br' ovali-rotunda crispata brevissime 
bifida, infra apicem in angulum lobulumve externe prominula. 
Per. campanulata oblonga, compressa, ore in lobulos 5 obtusos 
crispatos incisa, 
3. L. schizostomus. Mediocris. F. dimidiato-ovalia rotundata. F!* sursum 
crescentia, inferiora foliis sub 4plo, superiora vix 2plo minora, 
