which it differs much in the short, stout, sometimes branched stipes with papillose cortex, 1 1 1< - 



voven <ln.. led filaments, and th< tant pyriform shape ol the capitulum. 



It' a needie >«r pin into the capitulum under a few ol the filaments ol P pyri/ormis, 



they will 1" ■ much interlaced to admit of being separated along their length 



ipitulum. (The filament figured in fig. 1711 was extracted with considerable 



periment be tried with a plant of P. capitatus^ the filaments are easily 



■ ■in the rest ut' the capitulum, showing that they are not nearlj so densely 



filaments of /'. pyriformis are sometimes globosely constricted above or below 



■ 



dried specimens brought by 1 >r. Hcwi are very heavy as compared with other 

 equal si/c. This is due, as he pointed out, to the dens<- mass of matted comal 

 ind to tin- sand which has settled and become entangled among them. 

 The geographical distribution of /'. pyriformis is confined to the West Indies 



5. Penicillus nodulosus Blainville 



Man. d'Actinologie 1 834. p. 553; Atlas t. 97, fig. 1. 

 Syn. Nesea nodulosa Lamouroux [haud granulosa] in Freycinet Voyage autour du monde. Zo<>! 

 1824. p. 622, tal). 91, figs. 8, 9. 

 Nesea nodulosa Deslongchamps in Encyclop. Méth. Zoophyt. 1824 — 5. p. 569. 

 Penicillus arbuscula Montagne in D'Urville Voyage au P6le Sud. Bot. 1842 — 45. p. 25, 



tal». 14. fig. 4. 



Nesea granulosa Lamour. fide Decaisne in Ann. Sci. Nat. 2 m « sér. toni. XVIII. 1842. p. 109. 

 Penicillus granulosus Decaisne loc. cit. 



rallocepltalus granulosus Kutzing Species Algarum 1849. p. 506. 

 Corallocephalus arbuscula Kutzing loc. cit. 



Nesea nedulosa Milne Edwards in Cuvier Le Règne Animal. Ed. III. vol. X. 1S49: p. 130. 

 Penicillus arbuscula Montagne Sylloge gen. sp. crypt. 1856. p. 451. 

 Penicillus arbuscula Harvey Phycologia Australica vol. I. 185S. tab. XXII. 

 Penicillus arbuscula J. (i. Agardh Til! Alg. Syst. V. [887. p. 63. 

 Penicillus granulosus J. G. Agardh loc. cit. 



Penicillus arbuscula De Toni Sylloge Algarum I. 18S9. p. 502. 

 Penicillus granulosus De Toni loc. cit. 



llah. InijIi . Baie des chiens marins, [sles Rawak et Yaigiou (sub nom. Nesea granulosa et Nesea 

 lulosa), Freycinet in Herb. Lamouroux! — Moluccas, Hcrb. Chauvin\ — West Australia, 

 Fremantle, Harvey Alg. exsicc. n° 564! — West Australia, Clif/ou'. — West Australia. 

 ttnest [sland, Markwell\ 

 Pa< [FIC. Ile Toud. D'Urville, herb. Montagne in Herb. Mus. Paris! 



Stipes short, not exceeding 3 cm. in length, 2 — 5 mm. in diam., terete or irregularly 

 com| . thickly encrusted, sometimes branched. Surface uneven, spumosely pseudoporose 



Capitulum subglobose, 2 — 6 cm. in diam. 



Filaments itulum rather ilenscly crowded, calcified, rigid, usually 20 — 30111111. long. 



slender, 300 — 400 ;;. in diam.. constricted below subtorulosely, and above at frequent but 

 ular interv; 



Filaments "f stipes bearing lateral appendages 3 — 5 times dichotomously divided and 

 by short capitate or rounded apices. [Figs. 172 — 175]. 



