M U S C I. 17 



ochrea, with archegonia and paraphyses at its base. 13. Calyptra 

 inclosing the capsule. 14, 15, 16. Capsules. 17. Mouth of capsule. 

 18. Cross section of capsule. 19. Calyptra. — Details magnified. 



2. CALYMPERES, Swarfz. 



1. Caltmperes constricta, Sp. Nov. (Tab. 3.) 



O. ramosa; foliis spiraliter tristkliis, e basi erecta amplexicauli patenti- 

 bus lanceolatis convolutis late pellucido-Kmbatis sub apice valde con- 

 strictis, costa solida ad constrictionem perdurante ibique expansa cor- 

 pusculisque cowfervoideis obsessa. 



Hab. Sandwich Islands. 



Stems branched, li-2 inches high. Leaves closely imbricating, 

 arranged in three slack spiral rows, from a narrow erect sheathing 

 base, spreading broad-lanceolate, subcylindrical-concave, suddenly 

 constricted below the apex, the portion above the constriction being of 

 a cup-like form and filled with numerous protruding fusiform attenu- 

 ated 8-10 septate bodies, growing from the expanded apex of the 

 heavy percurrent costa : the leaves finely and distantly denticulate, 

 surrounded by a broad pellucid border, 5-10 minute linear cellules 

 deep ; cellules of the sheathing base hyaline, large, oblong, those of 

 the lamina minute, rotund, opaque, green, and granular. Flowers and 

 fruit not seen. 



The shape of the leaf, the constriction below its apex, and the form 

 of the bodies growing on the end of the costa, appear to distinguish 

 this species from any heretofore described. 



Plate 3, A. — Caltmperes constricta : a plant of the natural size. 

 Fig. 1. Portion of the stem with leaves. 2, 3, 4, 5. Leaves. 6, 7, 8. 

 Points of leaves with confervoid filament. 9, 10. Confervoid filaments. 

 11, 12, 13. Cross sections of leaf. 14. Portion of lower part of leaf, 

 showing the reticulation. 15. Point of leaf, showing the same. 16. 

 Cellules of the leaf. — Details enlarged. 



