INDEX. 



[The figures in black-faced type indicate references to the formal descriptions in the systematic part of the work.] 



Page. Plate. 



Acanthella 



Acanthocladium 



Accessory tubes, homology of 6 



Acladia 53 



Adhesive cells 



Agassiz, Alexander - - - 1, 2, 73, 131 



Agassiz, Louis - 1> 88, 131 



on the family Plumularida- 47 



Aglaopheuia 4, 10, 13, 16, 17, 19, 20, 22, 23, 24, 29, 30, 31, 33, 37, 41, 43, 45, 47, 54, 87, 88, 89, 107 



allinani 89,90,100 XXII 



aperta 16,50,89,90,94,95 



apocarpa 50,89,93,94,95 XVIII 



arborea 102,103 



bicornuta - 12,16,17,50,89,90,105 XXIV 



bispinosa 109 



calamus . 50.89,91 XXIV 



catharina 60 



constricta 50,89,90,105 XXIV 



contorta 12,59,89,96 



crenata 13,49,50,89,90 XXIII 



cristata - - - 105 



cristifrons 16,50,89,95 



distaiis 108 



dubia 50,89,92 XVIII 



elegans 12,50,89,94 XIX 



flowersi - 89,93 XIX 



(franciscana) - - 1, 102 



(gracilis) 91,92 



gracillima 12,13,50,89,90,103 XXIII 



helleri 25,43 



insignia - 34,50,89,90,94 XIX 



Integra -- 117 



(late-carinata) 96,97 



latirostris 10,12,50,89,90,101 XXII 



lougicornis 6 



lophocarpa 16,17,19,49,50,89,92,94 XVIII 



mammillata 16,50,89,90,98 XXI 



minima 50,89,90,98 XXI 



minuta 13,16,17,50,89,90,96 XXI 



myriophyllum 89, 106, 107 



octocarpa 50,89,90,103 XXIII 



patagonica 50,89,90,104 



pelagica 50,89,90,97 



perforata 89,90,99 XXI 



perpusilla . 4.18,50,89,90,98 XXI 



philippinus 



phy llocarpa 11, 125 



pluma - 19,25,39,40,44,106 



radicellata 106 



(ramosa) 



ramulosa 50,89,90,103 XXIII 



rathbuni 19.59,89,90,101 XXII 



279 



