Silva Center for Phycological Documentation: Index Nominum Algarum

The INA is a card file and online reporting system maintained at the Silva Center for Phycological Documentation of the University Herbarium, University of California, Berkeley. It contains nearly 200,000 names of algae (in the broad sense). The BPU is a card file containing bibliographic references pertaining to algal taxonomy.
A working list of algal type specimens at UC is available here

Results from INA database

HALIDRYS(Lyngbye) Duby image
HALIDRYS(Lyngbye) Endlicher image
HALIDRYSLyngbye Tent. Hydrophytol. Dan.: xxix, 37 1819
HALIDRYSStackhouse Mém. Soc. Imp. Naturalistes Moscou 2: 53 1809
Halidrys angustifolia_('angustifolius')(Stackhouse) Stackhouse image
Halidrys bi-nascensStackhouse image
Halidrys canaliculata_('canaliculatus')(L.) Stackhouse image
Halidrys ceranoides(L.) Stackhouse image
Halidrys ceranoides(Linnaeus) Stackhouse Mém. Soc. Imp. Naturalistes Moscou 2: 64 1809
Halidrys comosa(Labill.) Gaillon image
Halidrys congestaDe la Pylaie image
Halidrys dioicaGardner image
Halidrys dioicaGardner image
Halidrys dioicaN.L. Gardner Univ. Calif. Publ. Bot. 4: 323, pls. 42-45 1913
Halidrys divaricata(L.) Stackhouse image
Halidrys gracilisDe la Pylaie image
Halidrys gracilis var. fasciculosaDe la Pylaie image
Halidrys horneri(Turner) Gaillon Dictionnaire des Sciences Naturelles [Levrault] 53: 356 1828
Halidrys linearis(Hudson) Stackhouse image
Halidrys longifructa_('longifructus')Stackhouse image
Halidrys mackayi_('Mackaii')(Turner) S.F. Gray Nat. Arr. Brit. Pl. 1: 391 1821
Halidrys mackayi_('mackaii')(Turner) S.F. Gray image
Halidrys membranacea(Stackhouse) Stackhouse Ner. Brit., ed. 2: xi 1816
Halidrys murmanicaZinova image
Halidrys nanaStackhouse Ner. Brit. ed. 2: xi, pl. V (p.p.) 1816
Halidrys nodosa(L.) Lyngbye image
Halidrys nodosa var. ellipticaDe la Pylaie image
Halidrys nodosa var. intermediaDe la Pylaie image
Halidrys nodosa var. minorLyngbye image
Halidrys nodosa var. minorS.F. Gray image
Halidrys nodosa var. siliquata_('siliquatus')S.F. Gray image
Halidrys osmundacea(Turner) Harvey in W.J. Hooker & Arnott Bot. Beechey's Voy.: 407 1840
Halidrys quercifolia(R. Brown ex Turner) Kützing Phyc. gen.: 359 1843
Halidrys quercifolia(Turner) Kützing image
Halidrys serrata_('serratus')(L.) Stackhouse image
Halidrys sherardii_('sherardi')(Stackhouse) Stackhouse image
Halidrys siliquosa(Linnaeus) Lyngbye image
Halidrys siliquosa f. gracilisHolmes & Batters image
Halidrys siliquosa var. denudataLyngbye image
Halidrys siliquosa var. evesiculosaJ. Agardh image
Halidrys siliquosa var. minor(Turner) Harvey image
Halidrys siliquosa var. minorGreville image
Halidrys siliquosa var. siliculosus(Stackhouse) Batters J. Bot. (London) 40(suppl.): 52 1902
Halidrys sisymbrioides(Turner) Gaillon image
Halidrys spiralis(L.) Stackhouse image
Halidrys spiralis(Linnaeus) Stackhouse Mém. Soc. Imp. Nat. Moscou 2: 63 1809
Halidrys undulata_('undulatus')(Stackhouse) Stackhouse image
Halidrys vesiculosa var. fasciculosaDe la Pylaie image
Halidrys vesiculosa_('vesiculosus')(L.) Stackhouse image
Halidrys volubilis(Goodenough & Woodward) Stackhouse Mémoires de la Société Impériale des Naturalistes de Moscou 2: 63 1809
Palaeohalidrys californicaGardner image
Palaeohalidrys dendriticaParker & Dawson image
Palaeohalidrys liguliformisParker & Dawson image
Palaeohalidrys linearisParker & Dawson image
Palaeohalidrys lompocensisParker & Dawson image
Palaeohalidrys occidentalis(Gardner) Parker & Dawson image
Palaeohalidrys superbaParker & Dawson image