THE BRYOLOGIST 
Vol. XVII July, 1914 No. 4 
NORTH AMERICAN SPECIES OF THE GENUS RAMALINA.— PART VI 
R. Heber Howe, Jr. 
Series: Fistulariae Wain. Class. Nat. et Morph. Lich. Bresil, 14. 1890. 
Thallus foraminous or fistulous. Spermogones pale. 
Key to the Fistulariae. 
Thallus over 10 mm. alt. 
Apices multifid-dendroid pollinariella 
Apices not multifid-dendroid .inflata 
Thallus not over 10 mm. alt dilacerata 
Ramalina pusilla Duby. 
Synonymy: Ramalina pusilla Duby, Bot. Gall. 6: 614. 1830. 
Type: In the herbarium of the Botaniska Institution, Upsala fide Dr. O. 
Juel. 1 
Type Locality: “insulis Staechadum” (= Is. Hyeres, France) Le Prevost. 
Original description: “thallo cartilagineo pusillo dense cespitoso simpli- 
ciusculo viridi-lutescente sublacunoso, ramis fistuloso-canaliculatis extus glabris 
intus pulverulentis apice saccato-dilatatis, apotheciis terminalibus lateralibus- 
que subelevatis disco carneo glaucescente concavo margine elevato integerrimo.” 
1. c. 
Figure: PL X, f. 5. 
Observations: This species, though included by Tuckerman as a member 
of our flora, has never to my knowledge been collected within our area. Mr. 
Merrill’s remark that “Tuckerman’s disposition of American representatives of 
the fistulous Ramalinas is unsatisfactory and incomprehensible” states the case 
fairly and fully. This species is often confused in Europe with the variety 
intumescens of R. fastigiata (sensu Nyl.). The American material referred here 
by Tuckerman should be known as R. dilacerata. 
Ramalina dilacerata (Hoffm.) Wain. 
Synonymy: Lichen dilacerata Hoffm. Deutsch. Flora 3:140. 1795. 
Ramalina dilacerata Wain. Not. syn. lich. 21. 1886. 
Ramalina calicaris f. minuscula Nyl. Prod. Lich. Scand. Supp. Lich. Lapp, 
orient. 114. 1866. 2 
1 On orig. label: “je recommande particuliarement a votre attention ce lichen que je crois 
nouveau et que j’ai trouve aux lies d’Hyeres, sur la cote de Provence.” Le Prevost? 
2 Type: No. 57, Fjellman. Lich. arct. 1863 at Brit. Museum. Type locality: “Soukelo" 
. . . . “Imandram.” Orig. Descript.: ‘‘accedens versus fastigiatam, quae est diminuta, 
sed tangit quoque calicarem (altitudo saepius 5-8 millimetrorum, fertiles.” 1. c. 
The May number of The Bryologist was published June ix, 1914. 
