Linguistic and psycholinguistic research over the last decade has prov
ided a wide array of evidence indicating that the mental representatio
ns of spoken word forms are highly structured objects. One prominent a
spect of the enriched notion of phonological structure is that the rep
resentation of segmental length (quantity) is separate from that of se
gmental identity; and another is that segmental sequences are organize
d into prosodic constituents. This paper discusses data from acquired
dysgraphia which suggest that certain attributes of phonological forms
also hold of orthographic forms as well - including the skeletal repr
esentation of quantity and the grouping of segments into syllabic cons
tituents. E.g., the geminate letters ee and tt in orthographic forms l
ike career and butter are represented and processed as single graphemi
c objects that are associated with two CV units on a tier that encodes
quantity. It is argued that such properties of phonological and ortho
graphic form reflect general conditions imposed on lexical representat
ion, and not modality-specific representational constraints.