Seven experiments run in Portuguese examined the role of orthography in ble
nding phonologically defined CVC syllables written either with a final mute
"e'' (orthographic disyllables) or with a final consonant (orthographic mo
nosyllables). Participants clearly relied on the spelling of the words (Exp
eriment 1): the preferred blend was C/VC for words spelled with a final con
sonant but CV/C for words spelled with a final mute "e''. The CV/C preferen
ce for mute-e-words was observed even when instructions emphasised the impo
rtance of their "sounds'' (Experiment 5) and even when the two materials sh
ared exactly the same rimes (Experiment 6). The blending pattern for pseudo
-words shows that participants relied on the spelling of pseudo-words' neig
hbours (Experiment 2). Furthermore, the influence of orthography was observ
ed for pseudo-words and homophonic words, depending on the spelling of cont
extual words (Experiments 3 and 4): the C/VC segmentation of pseudo-words a
nd homophones was much more frequent in a context of words spelled CVC than
in a context of mute-e-words. Finally, there was no substantial reduction
of the spelling effect when crossing the acoustic portion of the rime betwe
en stimuli (Experiment 7) allowed control of possible acoustic-phonetic eff
ects. The whole pattern of results shows that our phonological judgements a
bout the structure of the syllable are shaped by the links between phonolog
y and orthography.