EXPLANATION OF PLATE XXV. 



.TI'HrLA. I'lant of typical J. Ilntchinsia 1 , enlarged; two pairs of leaves 

 seen from below; a lower lobe separate and divided; a perianth with its 

 outer involucre and the dehiscent capsule; an elater. 



BLEPI1AROSTOMA. Plant of 15. trichophylla, and same enlarged; peii- 

 anth with the outer involucre, ventral side ; two cross sections of perianth : 

 portion of the margin of its orifice, expanded. 



LI< K'UL^ENA. riant of L. lanceolata; end of fertile branch, with two 

 leaves, two involucral leaves, and young perianth ; summit of perianth: 

 perianth and involucre, the capsule protruding; capsule on its pedicel, 

 with remains of calyptra ; capsule dehiscent. 



MYLIA. Plants of M. Taylori, enlarged ; portion of stem, seen from lie- 

 math; a cauline leaf (below) ; an underieal'; an involucral leaf (above); 

 perianth partly cut away, showing the calyptra and exserted dehiscent 

 capsule. 



DYPLOPIIYLLUM. Plant of typical 1). albicans, enlarged ; a folded leaf; 

 a leaf with the upper lobe expanded to show i he nerve; an involucral 

 leaf seen from without, and from within; perianth, cut longitudinally; 

 calyptra. 



NARD1A. Plant of X. crenulata (a slender small leaved form), enlarged; 

 portion of upper stem with leaves ; perianth; calyptra; elater and spores. 



.irXliKHMAXXIA. 1. Plants of J. Schraderi, natural size and enlarged : 

 two leaves; twounderleaves; involucre; summit of perianth. 2. Plant 

 of .i. harliata, enlarged; portion of stem with lea\es and nnderleaves ; 

 ] perianth with involucre; involucre. 3. I lant of J. Ilelleriana, en- 

 larged; summit of stem witli leaves, involucre, and perianth; involucral 

 leaves; margin of perianth unfolded. 4. Hants of J. inflata, natural 

 si/e and enlarged; cauline leaves; involucral leaf. 



Lr?s'l'LAi;iA. Sterile and fruiting plants of L. vulgaris, enlarged ; section 

 of involucre, showing calyptra and capsule ; lunate receptacle of sterile 

 plant, with genimaj. 



MARSILIA. Portion of plant of M. quadrifolia . ; a sporoearp ; sporocarp 

 burst in water and extruding the gelatinous ring with compartments 

 attached. 



