Botanical Latin

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Dr. K's guide to botanical Latin, with profuse apologies to Wm. T. Stearn, from whom I (Kay) cribbed a lot of it.

Latin words are divided into syllables. There is one vowel per syllable, with the exception of diphthongs like ae, au, ei, eu, oi and ui.
To determine where the accent falls in a word, you must divide it into syllables. If there is a long vowel in the penult, (the next-to-last syllable), the penult gets the accent. (au-STRA-lus, AL-bus).
If the penult has a short vowel, the accent goes on the syllable before the penult, the antepenult. (FLO-ri-dus, la-ti-FO-li-a)
Diphthongs are treated as long vowels.
In Latin, if two vowels that do not form a diphthong come together, the first vowel is short: CAR-ne-us, ME-di-us
In words of Greek origin, the opposite holds: gi-gan-TE-us.
Watch out for the -inus ending. The i is long in some cases, like al-PIN-us, but short in others: se-RO-ti-nus. Words of Greek derivation usually have the short i in an -inus ending.
Best way to find out where the accent belongs is to consult a decent Latin dictionary, or a good flora like Gray's Manual. If the stresses are indicated by a ` (grave), the syllable has a short vowel. If the syllable is accented with a ' it has a long vowel.
There are usually some minor accents earlier in the word if it has a bunch of syllables: put them in reasonable places, usually every other syllable.... rosmariniflorus is rose'-mar-in'-i-FLOR-us.
You have your choice of pronunciations of letters. Stearn gives "reformed academic" ("classical") and "traditional English" which is next door to my church latin.

Modern Letter	Classical	Traditional
long a	father	fate
short a	apart	fat
ae	as ai in aisle	as ea in meat
au	as ou in house	as aw in bawl
c	cat	K before a, o, u (cat) S before e, i, y (center)
ch	in greek words as K or as k-h	k or ch
long e	they	me
short e	pet	pet
ei	rein	height
g	go	G before a, o, u (go) J before e, i, y (gem)
long i	machine	ice
short i	pit	pit
consonant i	"y" as in yellow	j
ng	finger	finger
long o	note	note
short o	not	not
oe	as oi in toil	as ee in bee
ph	as p or p-h if possible	f
r	always trilled	(how do you trill???)
s	sit, gas	sit, gas
t	table, native	t at beginning, but like ti in nation in middle
long u	brute	brute
short u	full	tub
ui	as the French "oui"	ruin
v (consonant u)	W	V
long y	u as in French pur	as long i in cipher
short y	as in French du	as y in cynical

If you're a true "church latinist", "cie" is "ch", not "s" or "k"

Now, as to pronouncing names that are stolen from other languages or were once peoples' names, you're kinda on your own. Try to get it to an approximation of the original language OR try to come up with something that doesn't land with a dull thud on the ear.

"Warszeiczella" can be rendered "var-she-vi-CHEL-la".

One other problem. -ii or -iae endings can be tricky, since if you apply the penult/antepenult rule, you need to put the accent on the last syllable of the latinized personal name, which is usually where it doesn't belong. So people cut some slack on that rule when dealing with -ii and -iae endings.

Finally, words of wisdom from Stearn:

"Botanical Latin is essentially a written language, but the scientific names of plants often occur in speech. How they are pronounced really matters little provided they sound pleasant and are understood by all concerned..."

Ah-men! Dona nobis pacem! (at least on this topic!)

Kay Klier Biology Dept UNI