graph tree {
node [shape = plaintext];
X_________ [label="*X"];
Holm_7_4to [label="A (Holm 7 4to)"];
AM529__4to [label=<<font color="grey">AM 529 4to</font>>];
AM567__4to [label="F (AM 567 4to)"];
Holm_6_4to [label="E (Holm 6 4to)"];
AM181f_fol [label="AM 181f fol"];
AM585e_4to [label=<<font color="grey">AM 585e 4to</font>>];
Kal614_4to [label=<<font color="grey">Kall 614 4to</font>>];
g_________ [label="*g"];
JS_8_fol__ [label="JS 8 fol"];
Lbs4825___ [label="Lbs 4825 4to"];
IB102_8vo_ [label="IB 102 8vo"];
Osl3562_13 [label=<<font color="grey">Oslo fol 3562:13</font>>];
Holm46_fol [label="Holm 46 fol"];
Holm_7_fol [label="B (Holm 7 fol)"];
AM179__fol [label="AM 179 fol"];
f_________ [label=<<font color="grey">*f</font>>];
Lbs2115___ [label="Lbs 2115 4to"];
JohnsHop_9 [label=<<font color="grey">Johns Hopkins 9 4to</font>>];
Gunnlaugur [label="Gunnlaugur Þorðarson"];
Lbs3121___ [label="Lbs 3121 4to"];
Lbs1509___ [label="Lbs 1509 4to"];
Lbs3944___ [label="Lbs 3944 4to"];
BodvarKv_V [label=<<font color="grey">Böðvar Kvaran MS V 4to</font>>];
Cederschld [label="Cederschiöld"];
AM180b_fol [label="D (AM 180b fol)"];
o_________ [label=<<font color="red">*o</font>>];
s_________ [label=<<font color="red">*s</font>>];
AM524__4to [label="AM 524 4to"];
a_________ [label="*a"];
a1________ [label="*a1"];
JS_407_8vo [label="JS 407 8vo"];
Lbs3933___ [label="Lbs 3933 8vo"];
IBR_59_4to [label="IBR 59 4to"];
IBR_43_8vo [label="IBR 43 8vo"];
JS_635_4to [label="JS 635 4to"];
FskF75A125 [label=<<font color="grey">Fiske F75A125 8vo</font>>];
p_________ [label=<<font color="red">*p</font>>]
IBR_42_8vo [label="IBR 42 8vo"];
Lbs1687___ [label="Lbs 1687 8vo"];
AM118a_119 [label="b (AM 118a/119a 8vo)"];
q_________ [label=<<font color="red">*q</font>>]
Lbs1654___ [label="Lbs 1654 4to"];
Lbs272_fol [label="Lbs 272 fol"];
Lbs679_4to [label="Lbs 679 4to"];
IB_277_4to [label="IB 277 4to"];
Lbs2462___ [label="Lbs 2462 4to"];
Nks3051___ [label=<<font color="grey">Nks 3051 4to</font>>];
JS_623_4to [label="JS 623 4to"];
IBR5_6_fol [label="IBR 5 and 6 fol"];
d_________ [label="*d"];
Rask31_4to [label="Rask 31 4to"];
Lbs998_4to [label="Lbs 998 4to"];
JS_632_4to [label="JS 632 4to"];
c_________ [label="*c"];
Lbs152_4to [label="Lbs 152 4to"];
Lbs1217___ [label="Lbs 1217 4to"];
r_________ [label=<<font color="red">*r</font>>];
IB_224_8vo [label="IB 224 8vo"];
L1785_1833 [label="Lbs 1785 4to"];

edge [color=grey]
Holm_7_4to -- AM529__4to;
Holm_6_4to -- Osl3562_13;
f_________ -- JohnsHop_9;
Gunnlaugur -- BodvarKv_V;
AM181f_fol -- AM585e_4to;
AM585e_4to -- Kal614_4to;
JS_635_4to -- FskF75A125;

edge [color=black]

Holm_7_4to -- Cederschld;
Holm_7_fol -- Cederschld;
Holm_6_4to -- Holm46_fol;
Holm_6_4to -- AM179__fol;
AM179__fol -- Gunnlaugur;
Gunnlaugur -- Lbs3944___;
Gunnlaugur -- Lbs3121___;
Gunnlaugur -- Lbs1509___;
Holm_6_4to -- AM181f_fol;
AM181f_fol -- g_________;
g_________ -- Lbs4825___;
g_________ -- IB102_8vo_;
g_________ -- JS_8_fol__;
Holm_7_fol -- AM180b_fol;
AM180b_fol -- AM524__4to;
o_________ -- a_________;
a_________ -- IBR_59_4to;
IBR_59_4to -- IBR_43_8vo;
a_________ -- a1________;
a1________ -- Lbs3933___;
a1________ -- JS_407_8vo;
o_________ -- JS_635_4to;
p_________ -- IBR_42_8vo;
p_________ -- Lbs1687___;
q_________ -- Lbs1654___;
Lbs1654___ -- Lbs272_fol;
q_________ -- IBR5_6_fol;
IBR5_6_fol -- c_________;
r_________ -- IB_224_8vo;
IB_224_8vo -- L1785_1833;
c_________ -- Lbs152_4to;
Lbs152_4to -- Lbs1217___;
AM179__fol -- f_________;
f_________ -- Lbs2115___;
Lbs2462___ -- Nks3051___;
Nks3051___ -- JS_623_4to;
c_________ -- r_________;
IBR5_6_fol -- d_________;
d_________ -- Rask31_4to;

edge [color=red]
X_________ -- Holm_7_4to;
Holm_7_4to -- AM567__4to;
AM567__4to -- Holm_6_4to;
X_________ -- Holm_7_fol;
AM524__4to -- o_________;
Holm_7_fol -- AM118a_119;
AM118a_119 -- q_________;
r_________ -- Lbs2462___;
JS_635_4to -- p_________;
Lbs1687___ -- Lbs679_4to;
Lbs679_4to -- IB_277_4to;
d_________ -- s_________;
s_________ -- Lbs998_4to;
s_________ -- JS_632_4to;

}