Helierella americana
Helierella ampullacea
Helierella anomala
Helierella bella
Helierella bennettii
Helierella brachyptera
Helierella breviceps
Helierella compacta
Helierella cornuta
Helierella crenulata
Helierella crucigenia
Helierella cuneata
Helierella delpontei
Helierella depauperata
Helierella dichotoma
Helierella divaricata
Helierella donnellii
Helierella fenestrata
Helierella fimbriata
Helierella flammea
Helierella formosa
Helierella gemmata
Helierella heptactis
(tree size 1)
Helierella holocystoides
Helierella humerosa
Helierella hypochondra
Helierella joshuana
Helierella lundellii
Helierella magnifica
Helierella mahabuleshwarensis
Helierella mamillata
Helierella mamillosa
Helierella multifida
Helierella multigibbera
Helierella multilobata
Helierella napoleonis
Helierella nordstedtiana
Helierella nummularia
Helierella ornata
Helierella platycera
Helierella pseudelegans
Helierella pulchella
Helierella quadrata
Helierella radiosa
Helierella retrorsa
Helierella rotata
Helierella simplex
Helierella tetraloba
Helierella torreyi
Helierella triangularis
Helierella truncata
Helierella urniformis
Helierella venusta
Helierella wallichii
Helierella boryana