686 .CLXXIH. IRIDEJE, [Moreec. 
Tarsus IL. Mozmsx. 
L. Eris, Linn. Gen, m. D9. —Perianthii segmenta infra vus unguiculata, erecta, 
basi contracta, in tubum brevem nunc | rarius lum connata (ovarii 
rostro interdum tubum longum tenuem simulante) 3 exteriorum laminze plus minus 
dilatatz, patentes v. reflex:e, 3 interiora angustiora undique erecta v. apice subpatentia, 
interdum minima. Stamina ad basin segmentorum exteriorum affixa, filamentis filiformibus 
liberis M grarius stylo agglutinatis ; antherce lineares, basifixze, styli ramis arcte applicitee 
Ovarium 3.loculare, loculis co-ovulatis, apice 
rotàndakura acuminatum v. in rostrum nune breve nune longum lenueque perianthii 
pd simulans sed. inius farctum productum ; stylus toro ovarium v. rostrum terminanti 
, intra p ii tubum liber, szepius brevis ; rami 3, stylo i ipso ssepius longiores 
supra antheras recurvi, utroque latere alati, alis SiSn antheram in lobos 2 erectos 
petaloideos (stigmatis labium interius auct. plur.) productis; stigmata ad basin loborum 
styli ramum terminantia, transversa, integra v. partita, Capsula oblonga, brevis v. longi- 
uscula, nunc teres, 3- v. 6-costata v. lzevis, nunc distincte 3-quetra, angulis interdum valde 
prominentibus acutisque, apice obtusa v. breviter rostrata v. in rostrum longum tenue 
intus farctum productum, infra rostrum 3-locularis, breviter v. rarius usque ad basin 
loculicide dehiscens ; rostrum, si breve, dehiscentia 3-fidum, ad apices valvarum per- 
sistens, si longum, varie marcescens v. demum disruptum. Semina smpius globosa v. 
preesionp angulata v. p , testa i liter spong ia; embryo 
in ine corneo longitudine variat.—Rhi: aono lig horizontale v. repens, 
rarius tenuius et longe repens, nunc brevissimum. Caules solitarii v. fasciculati, simplices 
v. ramosi basi interdum in bulbum tunicatum, rarius in cormum, incrassati, tunicis, dum 
istant, levibus br isque v. in fibras solutis. Folia ad basin caulis linearia, tenuia, 
y plana ensata disticha et equitantia, secus caulem pauca. Spatha unica, terminalis, v. 
d secus caulem simplicem een v. ad apicem caulis confert, interdum omnes 
in it Flores in spatha ssepius 2—co, rarius solitarii, 
plus minus pedicellnti, 
Species fere 100, Europs, Afriez borealis, Asize temperate et Ameriem borealis incole. Baker 
in Gard. Chron. 1876 (Iris) ; in Journ. Linn. Soc. xvi. 122 (Xiphion) et 136 (Iris)... Klatt in Linnea 
xxxiv. 568 (Xiphion), 673 (Coresantha), 516 (Gynandriris), 918 Oncocyclus, 587 (Neubeckia), et 591 
(ris) ; Ergünz. und. Bericht. 27 (Xiphion et Juno), 35 (Iris), 8e nonna et fononcyonit): a 
Genus conspieuum, naturale, facileque dig tamen poly et & 
variis auctoribus varie restrictum v. extensum. Tausch i in Rem. et Schult. Syst. i. Mant, Addit. 
369, sectiones 6 proposuit, quarum 3, Limniris, Xyridion et Spathula, & Bakero in subgenus suum 
Apogon junetee sunt ;. Pogiris, Tausch, est Pogoniris, Baker; Lophiris, Tausch, est Evansia, Baker ; et 
Xiphion, Tausch, a Bakero pro genere proprio recipitur. 
Spach, Revis. Trid, in Ann. Sc. Nat. ser. 3, v. 89, /ridem in subgenera 15 divisit, a Bakero in variis 
subgeneribus suis v. generibus distributa. 
Alefeld, in Bot. Zeit. 1863, 390; 297, genus distinetum NEuBECKIAM proposuit, ad species varias 
jianthio tubo longissi i. Hie tamen latet error; in Croco tubus verus elongatus 
tenuisque adest, stylum liberum inceludens, in Neubeckia rostrum ovarii tubum simulat, sed intus 
farctum est et vertice torum styliferum ad basin tubi brevis perianthii fert. 
Parlatore, Nuov. Gen. e Spec. Monocot. 34, genera 3 ab Jride separavit, Hermodactylon, Gynan- 
dririm et Xiphion; in Xiphio preter species Xiphii, Baker, includit etiam JNeubeckias plures, et 
ovarii rostrum pro perianthii tubo stylo adnato descripsit, sed stylus nequaquam intra rostrum 
eontinuitur. 
Klatt in Bot. Zeit. 1872, 497, 513, Iridem limitavit ad species unguibus loborum exteriorum 
perianthii barbatis et species perianthiis nudis (/4pogon, Baker) in genera 2 nova distribuit, XvRrDION, 
Klatt, 1. c. 499, et IoxiRs, Klatt, 1. c. 502, quorum characteres bene intelligere nequimus, quosque 
nuper in Ergünz. und Bericht. sub silentio pretermittit. 
Inter tot discrepantias, sectiones et subsectiones sequentes a generibus subgeneribusque Bakeri 
parum mutat, etsi vix semper naturales, commode. admittendee videntur. * 
1l. Euiris. Rhizoma plus minus evolutum nunc E l odosum, nune crassum 
horizontale v. repens, nune tenue elongatum v. stoloniferum, Caules ad apicem rhizomatis solitarii 
