ON CHLAMYDOSTYL0S. 185 



flavate, membranous capsules. They differ principally iu thtir stamens 

 and styles, and this, according to the classification of the Order 

 generally received, places them far apart in the sequence of genera, 

 Gelasine and Chlamydosfylus being monadelphous, whilst in Calydorea 

 and Kemastylis the filaments are free. Chlamydostylm has exactly the 

 remarkable style-strncture of JSfemastylis, six subulate forks spreading 

 like the spokes of a wheel, whilst in Calydorea and Gelasine the three 

 styles are either entire, or at most only emarginate at the tip ; so 

 that Chlamydostylus, referring to old types, may be briefly stated to 

 be a genus of bulbous Sisyrinchkcm-like Iridacece, with the stamens 

 of Gelasine and pistil of Nemastylis. 



The following is a description of the genus, and of the species 

 which I have had an opportunity of examining: — 



Chlamydostylus, Baher. — Perianthium regulare cceruleura tene- 

 rum, tubo supra ovarium nullo, limbo campanulato, segmentis sequa- 

 libus obovatis obtusis. Stamina inclusa monadelpha, filamentis in 

 columnam cylindricam prorsus connatis, antheris 3 basifixis erecto- 

 patentibus, ligulatis connective angusto, vel oblongis, connective lato. 

 Ovarium clavatum, triloculare, ovulis in loculo crebris horizontalibus ; 

 stylus filiformis erectus, ramis 6 subulatis apice stigmatosis. Capsula 

 clavata, membranacea, operculata. Semina perfecte matura non vidi. 

 Herbse bulbosaj Americse tropicalis, foliis 1-2 basalibiis teretibus vel 

 anguste linearibus plicatis, caulibus simplicibus vel parce ramosis 

 1-2- foliatis, spathis segregatis terminalibus 1-6-floris, valvis lanceo- 

 latis viridulis arete imbricatis, pedicellis floriferis sa;pissime protrusis. 



Clavis specierum. 

 Antherae ligulatse, connective angusto incenspicue. 

 Semipedalis, foliis angustissimis subtereti- 



bus, fleribus ad spatham 1-2 . . . I. C. tenuis. 



Pedalis, foliis anguste linearibus plicatis, fleri- 

 bus ad spatham 4-6 .... 

 Aiitherse oblongae vel subpanduriformes, con- 

 nective lato conspicue. 

 Folia anguste linearia plicata. Pedicelli e 



spatha protrusi cernui 

 Folia dura teretia. Pedicelli inclusi 



1. C. TEJj-uis, Baher. — Nemastylis coelestina, var. tenuifolia, ^^r^. 

 in Bot. Mag., sub t. 3779 ; Beatonia coelestina, Klatt in Linnaa 31, 

 567, ex f arte. Bulbus ovoideus 4-5 lin. crassus, tunicis fusco-uigris 

 secus collum longe productis. Folia basalia 2, erecta, filiformia, 4-6 

 pell, longa, \-\ lin. lata, albido-vittata. Caulis semipedalis, gracilli- 

 mus, simplex vel furcatus, folio unice reducto supra medium 

 praeditus. Spathse valvas lineares vel lanceolatse, acutae, 9-12 lin. 

 longae. Flores erecti, ssepissime solitarii, pedicellis 9-12 lin. longis. 

 Ovarium clavatum, glabrum, 2 lin. longura. Perianthium cseruleum, 

 6-8 lin. longum, segmentis ebovato-eblongis 3 lin. latis. Columna 

 tilamenterum alba, cylindrica, 1 lin. longa, antheris ligulatis luteis 

 flore expanse convolutis, connective anguste. Stylus columna ajqui- 

 longus, ramis subulatis erecto-patentibus 2 lin. longis. Mexico ad 

 Ayuas Calientes, Hartweg, 229 ! ; Monterey, Dr. Edwards ! (Torrey 

 in Hb. Eenth.) ; Sa7ita Fe prope urhcm Mexico^ Bourgcau, 416 ! 



