ox THE £XISTE^'■CE OF TWO FOR:\rS ly SPECIES OF T.jyvsz. 09 



ovgans are almost concealed by the spathe and bracts. Its nearest 

 known ally is probably 11. rosti-ata, Euiz and Pavou, a native of 

 Peru. Dr. Antlioine desires that this noble plant should bear the 

 name of tlie Empress of Eussia, -nhicli I have therefore attached 

 to it. 



Helicoxia Marine, Jlook.f. Folioi-imi vaginis trimcnm elatum effov- 

 mantibus, lamina oblonga petiolata ampia, spicis longe peihmciilatis 

 peiuluUs, spathis erebre dense disticho-imbricatis rachin omnino velan- 

 tibus late ovato-eynibiformibus rccuryis obtusis, lloribus bracteis in- 

 clusis gl.abratis. 



Hah. Betami on the Sinu River (lat. S^ X.), State of Rolivar, in Neir 

 Granada [Jir. A. Anthoine). 



Truncus 3—1 metr., cam foliis G nietr., etiam 10-15 centimetr., laevis, 

 viridi-purpureus {Aiith,). Folia oblonga v. lineari-oblonga, obtnsa, 

 3-4 ped. longa, petiolo feqnilonga, viridia. Feduncidus crass, digiti, 

 curvns, glaber, sicens flexnosus, teresj intus vasibus moUibus farctus. 

 Spicie li ped. longas, 3-4 poll, latue, lineares, obtnsah, eompressse. 

 Spathte 60-80, dense imbrieata;, refle.va?, valde concava?, late oxato^ 

 cymbiformes, glabric v. pnbescentes, lateribns erectis, basin versns sub- 

 oordatae, marginibus undidatis, apice obtusiuscuUc ; iufima; rostrata; ; 

 inferiorcs 1-2 distantes, 4-5 unc. longa;, rachin pubescentera non 

 tegentibns ; cscterie 2-2.J vmc. longs, rachin velantcs ; superiores in- 

 feriorcs amplcctentes. Flores rubri (.-I?iM.), in spatha singula 15-20, 

 bracteis lineari-lanceolatis glabriusculis inclusi, reccptacvdo brevissimo 

 in axilla spathoe inserti ; apieibns periantliii tantum exsertis. Bractete 

 alba;, spatha breviores, ovato-lanceolatce, basi concavae, exteriores vacuiE. 

 Pedicelli A" longi, crassiuscnli, vlllosnli, compressi. Ovarium trigonum. 

 Perianthium 1" long., foliolis extus subtomentosis. Stylus apice in- 

 eurvns. Anthera inelusne. Dnipa Citrulea (Ant/i.), 3-cocca; coccis 

 oblongis, couipressis, basi antice fovea cupubcforini notatis, subrugosis, 

 osseis, intus subrugosis. Semen erectum; testa membranacea, raphe 

 annular! circumdata. Alhitmen snbfarinaccuni. Mmbri/o a\iUaris, gra- 

 cilis, cxtreniltate radiculari panlo crassiore, germinatione foveam cocci 

 perforante. 



On the existence of two forms, and on their reciprocal sexual re- 

 lation, in several species of the genua JAiimn, By CitA.Kl-E3 

 Dabwik, ar.A., F.E.S., F.L.S., &c. 



[Bead February 5, 1863.] 

 The crimson Linum grandiflorum presents two forms, occurring 

 in about equal numbor.s, which differ little in structure, but greatly 

 in function. The foliage, corolla, stamens, and poUen (e-vamiued 



Mo. Bot. Garden, 



1S96. 



